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HTML 

              
                
<div class="wrapper">
  <div class="bg">
<!--     <img src="http://lorempixel.com/500/500/abstract/" alt="" /> -->
  </div>
  <div class="blend-mask">
<!-- <div class="msg">Hello</div> -->
<!--       <svg id="svg-dot" height="100" width="100"> -->
<!--         <path fill="black" d="M0,50a50,50 0 1,0 100,0a50,50 0 1,0 -100,0"/> -->
<!--       </svg> -->

      <svg id="my-svg" viewBox="0 0 1000 740" >

       <path id="path-circle" class="" d="M550,370a50,50,0,1,1-50-50A50,50,0,0,1,550,370Z" />


        <path id="bh" 
              class="" 
              fill="black"
              d="M648.5,0.5v199h-69V0.5h-580v740h580v-199h69v199h351V0.5H648.5z M288.9,545.5h-52.4v-118h52.4c32.7,0,59.3,26.2,59.3,59C348.2,519.3,321.6,545.5,288.9,545.5z M288.9,318.5h-52.4v-119h52.4c32.7,0,59.3,26.7,59.3,59.5
	C348.2,291.8,321.6,318.5,288.9,318.5z" />
        
  <path id="hippo" class="st0" d="M13.833,231.876c4.154-55.746,24.442-104.83,60.85-147.292
	c41.031-47.948,92.453-71.909,154.224-71.909c23.493,0,58.398,3.714,104.745,11.058C380,31.148,414.891,34.778,438.411,34.778
	c35.955,0,87.816,13.426,155.586,40.18c12.009,4.566,26.513,17.056,43.554,37.315c9.683,11.967,24.669,30,44.943,53.975
	c4.608,3.246,10.62,8.068,18.005,14.56c7.374,6.408,12.435,9.201,15.171,8.28c0.935-2.792,3.261-6.677,6.947-11.738
	c1.842-1.858,2.978-2.78,3.431-2.78c1.418,0.922,2.779,1.844,4.168,2.78c1.375,0.935,1.829,3.672,1.375,8.28
	c-0.935,8.307-1.375,10.832-1.375,7.584c-0.496,4.637-1.148,7.6-2.083,9.032c-5.997,10.123-8.323,17.978-6.905,23.478
	c1.389,5.046,5.713,13.156,13.114,24.216c7.387,11.058,11.513,19.365,12.433,24.895c-0.453,4.141-0.652,10.803-0.652,20.048
	l-6.932,17.268c0,12.917,14.971,35.075,44.943,66.437c14.319,6.408,21.423,28.568,21.423,66.337
	c0,29.547-24.415,44.262-73.256,44.262c-6.465,0-13.37-0.197-20.756-0.708c-5.061-1.815-12.448-3.885-22.118-6.182
	c-11.511-1.417-19.365-5.302-23.491-11.796c-7.401-10.547-19.396-20.501-35.983-29.715c-2.766-1.333-6.806-6.408-12.108-15.199
	c-5.316-8.762-10.038-14.291-14.164-16.616c-4.126-2.269-10.136-2.751-17.992-1.333c-13.37,2.268-20.755,3.431-22.117,3.431
	c-3.246,0-7.967-0.907-14.178-2.779c-6.237-1.844-10.704-2.779-13.496-2.779c-3.206,14.773-3.929,29.063-2.07,42.873
	c0.453,3.715,2.779,6.72,6.918,8.988c6.479,4.622,9.911,7.146,10.393,7.657c4.125,3.204,8.521,8.506,13.114,15.851
	c0.935,2.806-0.794,7.514-5.189,14.177c-4.382,6.693-7.925,10.634-10.719,11.739c-2.751,1.192-8.749,1.787-17.978,1.787
	c-13.384,0-18.658,0.199-15.88,0.652c-18.43-2.779-28.808-4.367-31.134-4.792c-11.513-2.324-21.437-5.983-29.717-11.086
	c-4.183-2.751-8.974-15.681-14.503-38.734c-5.587-24.897-10.193-39.868-13.866-44.972c-0.907-1.36-2.056-2.012-3.431-2.012
	c-2.326,0-6.138,2.268-11.427,6.918c-5.302,4.537-8.889,7.06-10.704,7.6c-6.437,27.164-9.712,40.065-9.712,38.648
	c0,10.633,2.992,19.564,8.99,26.966c5.983,7.372,12.236,14.518,18.701,21.408c7.825,8.762,11.739,16.362,11.739,22.827
	c0,3.657-1.135,6.861-3.46,9.669c-9.683,11.966-25.832,17.978-48.417,17.978c-25.363,0-41.951-3.46-49.763-10.379
	c-10.165-8.762-16.616-18.005-19.367-27.617c-0.453-2.326-1.601-9.244-3.46-20.756c-0.922-6.947-3.005-11.058-6.195-12.42
	c-9.258-1.389-20.771-3.913-34.566-7.599c-2.793-1.844-5.784-6.465-9.017-13.837c-5.968-14.264-10.364-23.96-13.143-29.036
	c-13.852-6.919-35.968-14.717-66.408-23.451c-1.389,2.779-2.041,6.636-2.041,11.712c5.061,6.465,12.661,16.389,22.812,29.715
	c8.294,11.06,12.448,21.693,12.448,31.815c0,19.396-12.448,29.036-37.344,29.036c-18.898,0-31.8-1.333-38.732-4.112
	c-10.123-4.139-18.658-13.865-25.576-29.036c-11.527-25.406-17.978-39.696-19.367-42.9c-7.387-17.043-12.449-32.07-15.184-45
	c-1.871-9.188-4.65-23.294-8.323-42.193c-3.219-15.624-8.28-27.858-15.197-36.621C23.743,284.206,11.977,255.836,13.833,231.876z"/>
      </svg>
  </div>
</div>


<!-- http://www.nurturedigital.com/blog/2016-04-02-the-blend-mask-how-nurture-was-made -->
!

CSS 

              
                body{
  background-color:orange;
}
.wrapper{
  mix-blend-mode: multiply;
  position: absolute; top:0; left:0; bottom:0; right:0;
  height:100%; width:100%;
  background-color:green;
}
.bg{
  position: absolute; top:0; left:0; bottom:0; right:0;
  height:100%; width:100%;
  // display:block;
  background-image:url('http://lorempixel.com/500/500/abstract/');
  background-size:cover;
  background-position:center;
}

.blend-mask{
  mix-blend-mode: screen;    
  background-color: #fff;
  color:black;

  position: absolute; top:0; left:0; bottom:0; right:0;
  width:100%; height:100%;

  font-size:20vh;
  // letter-spacing:-0.2em;

  pointer-events:none;
}


.msg{
  // position:absolute;
}

#svg-dot{  
  position: absolute; 
  top:50%; left:50%;
  transform:translate(-50%, -50%);
 }


#bh{
  display:none;
}

#my-svg{
  // border:1px solid red;
  position:absolute;
  display:block;
  width:50%;
  height:auto;
  // left:50%; top:50%;
  // transform: translate(-50% -50%);
}

#path-circle{
  position:absolute;
  display:block;
  // left:50%; top:50%;
  // transform: translate(-50% -50%);
}
#hippo{
  display:none;
}
!

JS 

              
                TweenMax.to('.maskman', 1, { 
  scale:0.5, 
  yoyo:true, repeat:-1, 
  ease:Power1.easeInOut
});

/* $(document).on('mousemove', function(e){
    $('#svg-dot').css({
       left:  e.pageX,
       top:   e.pageY
    });
}); */


/* TweenMax.to('#svg-dot', 0.3, {   
  scale:0.5
  ,yoyo:true, repeat:-1, ease:Power1.easeInOut
  ,transformOrigin:"50% 50%"
}); */

// TweenMax.to($("#path-circle"), 1, {morphSVG:$("#bh"), ease:Power1.easeInOut, yoyo:true, repeat:-1, repeatDelay:0.5 });
var MORPHER = $("#path-circle");

var tlm = new TimelineMax({autoPlay:true, ease:Linear.easeNone, yoyo:false, repeat:-1, repeatDelay:0});
tlm.to(MORPHER, 1, {morphSVG:$("#bh"), ease:Power4.easeInOut});
tlm.to(MORPHER, 1, {morphSVG:$("#hippo"), ease:Power4.easeInOut});
tlm.to(MORPHER, 1, {morphSVG:MORPHER, ease:Power4.easeInOut});
tlm.to(MORPHER, 1, {scale:0.2, transformOrigin:"center", ease:Power4.easeInOut});
tlm.to(MORPHER, 1, {scale:1,   transformOrigin:"center", ease:Power4.easeInOut});

// this forces Chrome & Safari to redraw
// TweenMax.to(".svg-clipped", 2, {backgroundColor:"#000000", delay:2,  ease:Power1.easeInOut, yoyo:true, repeat:-1 });


var mySVG = $('#my-svg');  
TweenMax.set(mySVG, {transformOrigin:"-50% -50%" });

$(window).on('mousemove', function(e){
    // TweenMax.to($("#my-svg"), 0, {x: e.pageX, y:e.pageY });
    TweenMax.to($("#my-svg"), 0.5, {
      x: e.pageX-mySVG.width()/2
      ,y:e.pageY-mySVG.height()/2
      ,ease:Power4.easeOut
    });
});
!
999px

Console