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HTML 

              
                .stage
  .santa
    .dem-eyes-do
  .cactus
!

CSS 

              
                // Variables
$pixel-size: 8px;

$p0: transparent;

// *******
// * HAT *
// *******
$p1:  #fafafb; // hat super light gray
$p2:  #f1f1f3; // hat light gray
$p3:  #dededf; // hat gray
$p4:  #e64631; // hat light red
$p5:  #cc3424; // hat red
$p6:  #9e2420; // hat dark red

// ********
// * FACE *
// ********
$p7:  #d5d5d5; // beard gray
$p8:  #abacaa; // beard dark gray
$p9:  #fdfdfd; // beard light gray
$p10: #b18b70; // face dark tan
$p11: #cca182; // face light tan
$p12: #f0f0f1; // face super light gray

// ********
// * SUIT *
// ********
$p13: #b81630; // suit dark red
$p14: #df3527; // suit red
$p15: #c7212e; // suit medium red
$p16: #9e2420; // suit very dark red
$p17: #e98f10; // belt yellow
$p18: #dd8609; // belt dark yellow
$p19: #b92a52; // gloves and legs
$p20: #040404; // feet
$p21: #e6e6e6; // stage

// **********
// * CACTUS *
// **********
$p22: #73c804; // cactus light green
$p23: #60aa04; // cactus green
$p24: #288604; // cactus dark green
$p25: #865004; // cactus brown

// Matrix for santa blocks
$santa:
  $p0 $p0 $p0 $p2 $p0 $p0 $p0 $p0 $p0 $p0 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p1 $p2 $p3 $p4 $p5 $p0 $p0 $p0 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p1 $p0 $p0 $p5 $p5 $p0 $p0 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p6 $p5 $p5 $p5 $p0 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p6 $p6 $p5 $p5 $p5 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p6 $p6 $p6 $p5 $p5 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p7 $p10 $p11 $p11 $p7 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p7 $p11 $p11 $p11 $p7 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p7 $p10 $p7 $p8 $p7 $p11 $p12 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p8 $p7 $p11 $p7 $p12 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p0 $p7 $p7 $p7 $p9 $p7 $p0 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p13 $p12 $p9 $p7 $p7 $p7 $p9 $p12 $p14 $p0 $p0 $p0,
  $p0 $p0 $p13 $p13 $p12 $p7 $p12 $p12 $p12 $p7 $p7 $p14 $p14 $p0 $p0,
  $p0 $p0 $p13 $p13 $p14 $p7 $p7 $p7 $p12 $p7 $p14 $p14 $p14 $p0 $p0,
  $p0 $p13 $p13 $p14 $p14 $p14 $p7 $p7 $p12 $p14 $p14 $p14 $p14 $p14 $p0,
  $p0 $p13 $p13 $p14 $p14 $p14 $p7 $p7 $p9 $p14 $p14 $p14 $p14 $p14 $p0,
  $p0 $p13 $p13 $p14 $p14 $p14 $p16 $p13 $p16 $p14 $p14 $p14 $p14 $p14 $p0,
  $p0 $p13 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p0,
  $p14 $p15 $p15 $p15 $p15 $p15 $p14 $p14 $p14 $p13 $p13 $p13 $p13 $p14 $p14,
  $p14 $p15 $p15 $p13 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14,
  $p14 $p13 $p13 $p14 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p14,
  $p14 $p13 $p14 $p14 $p14 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p14,
  $p14 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p14,
  $p14 $p13 $p13 $p14 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p14,
  $p14 $p13 $p14 $p12 $p12 $p14 $p14 $p17 $p18 $p14 $p14 $p12 $p12 $p13 $p14,
  $p14 $p13 $p14 $p14 $p14 $p12 $p12 $p18 $p17 $p12 $p12 $p14 $p14 $p13 $p14,
  $p14 $p13 $p14 $p13 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p14,
  $p19 $p13 $p14 $p13 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p14 $p13 $p19,
  $p19 $p13 $p14 $p13 $p14 $p14 $p14 $p0 $p14 $p14 $p14 $p14 $p14 $p13 $p19,
  $p0 $p0 $p0 $p13 $p13 $p14 $p0 $p0 $p0 $p14 $p14 $p14 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0 $p0 $p19 $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0 $p20 $p0 $p0 $p0 $p0 $p0 $p20 $p0 $p0 $p0 $p0,
  $p21 $p21 $p21 $p20 $p20 $p21 $p21 $p21 $p21 $p21 $p20 $p20 $p21 $p21 $p21;


// NOTE:
// Filled empty bit of
// cactus with transparent
// blocks in order to force
// cactus to grow upwards.
// Same is true with the rest.
$cactus-base:
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p22 $p0 $p0,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p0 $p25 $p0;

$cactus-one:
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p22 $p0 $p0,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p0 $p25 $p0;

$cactus-two:
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p0 $p0 $p0,
  $p0 $p22 $p0 $p0,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p0 $p25 $p0;

$cactus-three:
  $p0 $p22 $p0 $p0,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p24 $p22 $p23,
  $p0 $p23 $p23 $p0,
  $p23 $p23 $p23 $p22,
  $p0 $p23 $p22 $p0,
  $p24 $p23 $p24 $p22,
  $p0 $p0 $p25 $p0;


// Mixin borrowed from https://codepen.io/roborich/pen/dqoDj
@mixin pixelmatic($art, $size: 10px){
  display: block;
  height: $size;
  width: $size;
  $shadow: 0 0 transparent;
  @for $y from 1 through length($art){
    @for $x from 1 through length(nth($art, $y)){
      $shadow: $shadow
      + ", " + 
      ($x * $size)
      + " " + 
      ($y * $size) 
      + " " + 
      nth(nth($art, $y), $x) ;
    }
  }
  box-shadow: unquote($shadow);
}

.santa {
  @include pixelmatic($santa, $pixel-size);
  position: absolute;
  top: 0; left: 0;
  
  .dem-eyes-do {
    position: absolute;
    bottom: -64px; left: 56px;
    height: $pixel-size;
    width: $pixel-size;
    
    background: $p20;
    box-shadow: 16px 0 0 currentColor;
    animation:
      blink 3s infinite,
      shift 3s infinite;
  }
}

@keyframes blink {
  10%, 22%, 34%, 100% {
    height: $pixel-size;
  }
  14%, 18%, 26%, 30% { height: 2px; }
}

@keyframes shift {
  0%, 39%, 81%, 100% {
    transform: translateX(0);
  }
  40%, 80% {
    transform: translateX(8px);
  }
}

.cactus {
  position: absolute;
  bottom: 0; right: 0;
  transform: translateY(-200px);
  animation: let-it-grow 12s linear infinite;
}

@keyframes let-it-grow {
  0%, 29% {
    @include pixelmatic($cactus-base, $pixel-size);
  }
  30%, 54% {
    @include pixelmatic($cactus-one, $pixel-size);
  }
  55%, 79% {
    @include pixelmatic($cactus-two, $pixel-size);
  }
  80%, 100% {
    @include pixelmatic($cactus-three, $pixel-size);
  }
}


// Stage Styles
html,body { height: 100%; }
body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage {
  position: relative;
  width: 240px;
  height: 320px;
}
!

JS
!
999px

Console