.my-custom-input-label-box input[type="checkbox"] {
	display:none;
}

.my-custom-input-label-box input + label {
	display: inline-block;	
	width: 60px;
	height: 30px;
	cursor: pointer;	
	background-image: url(http://tuslooks.es/wp-content/uploads/2021/07/perro-saltando.jpg);
}

.my-custom-input-label-box input[type="checkbox"]:checked + label {
	background-image: url(http://tuslooks.es/wp-content/uploads/2021/07/perro-saltando.jpg)
}