.image-1, .image-2, .image-3 {
    position: absolute;
    background-image: url("../img/background/hero.png");
    background-repeat: no-repeat;
    width: 860px;
    height: 650px;
}
.image-1 {
    top: 150px;
    left: calc(100% * 0.4);
}

.image-2 {
    top: 1528px;
    right: 1235px;
}

.image-3 {
    transform: rotate(180deg);
    top: 2900px;
    right: 290px;
}