SOURCE

window.onload = function() {
   setInterval(() => {
       openEye()
   }, 400)
   setTimeout(closeEye, 2000);
};

function openEye() {
    const imgs = document.querySelectorAll('.animate img');
    const imgOpen = imgs[0];
    const imgClose = imgs[1];
    imgOpen.style.display = 'block';
    imgClose.style.display= 'none';

}
function closeEye() {
    const imgs = document.querySelectorAll('.animate img');
    const imgOpen = imgs[0];
    const imgClose = imgs[1];
    setInterval(() => {
        imgOpen.style.display = 'none';
        imgClose.style.display= 'block';
    }, 5000)
}

<div class="animate">
    <img src="https://i0.hdslb.com/bfs/vc/082e39ef757826401ef82da818310d42e05bc2de.png"></img>
    <img src="https://i0.hdslb.com/bfs/vc/173eafe211b4671e5aff059a1834f3e4579c7a5d.png"></img>
</div>

.animate {
    width: 1000px;
    background: pink;
}
.animate img {
    width: 100%;
}
.animate img:last-of-type {
    display: none;
}