<div class="bloco">
  <img src="https://www.htmlecsspro.com/exemple/img/imagem.jpg" alt="Border radius e shadow efeito"  />
</div>

img{
  max-width: 100%;
}

.bloco {
  width: 250px;
  margin: 15px;
}

.bloco img{
  -webkit-transition: all 0.7s ease;
  transition: all 0.7s ease;

  box-shadow: 10px 10px 10px  rgba(0,0,0,0.6);
  -webkit-box-shadow: 10px 10px 10px  rgba(0,0,0,0.6);

  border-top-left-radius: 120px; 
  border-bottom-right-radius: 120px;
  border-top-right-radius: 15px;
  border-bottom-left-radius: 15px;
}

.bloco img:hover {
  border-top-left-radius: 15px;
  border-bottom-right-radius: 15px;
  border-top-right-radius: 120px;
  border-bottom-left-radius: 120px;

  box-shadow: 10px 10px 10px  rgba(205, 92, 92,0.6);
  -webkit-box-shadow: 10px 10px 10px  rgba(205, 92, 92,0.6);
}