This Photoshop photo contains
galuchat, stingray, patin, patinage, rayon, and ray.
There might also be
ray électrique, crampfish, numbfish, torpille, rayon électrique, electric ray, and numbfish torpille.
First we will quickly go through Layers, since toi can not understand what a mask is ou does before toi understand what a layer is. After that, we'll continue to learn what a mask is, when & how we use it, and a few shortcuts and tips.