Monomad Challenge - Leaf Caterpillar on an orange tree

This is a picture of a leaf caterpillar on an orange tree, I have a hard time finding this caterpillar. because it has the same color as the leaf color. This caterpillar is also very good at hiding, it is even very difficult for us to photograph it, let alone using a macro lens.

Thanks very much for visiting !
Regards @refa