English to Spanish Art/Literary Art, Arts & Crafts, Painting art works

In an elementary school art curriculum, students need to learn the following vocabulary: sculpture, 2D, 3D, collograph, printmaking, brayer, plate, ink, landscape, foreground, proportion, balance, "aesthitics," etc.

I looked up "collograph" in google and understand that it is a method of making things with various types of materials. You could have cardboard or chipboard for your "plate," or it could be copperplate, etc. You can use scraps of material, foil, dried food, etc. Then you can do something more with it such as ink and press it.

Is there a word in Spanish for this? Or do I just have to leave it in English with an explanation?

Maybe it's a collage graph (my invention)! Una plancha de arte usando varios tipos de materiales al estilo collage?