I taught a class in gelatin plate monotype at Banfill-locke Center for the Arts last weekend. Here are a few my favorite prints. I experimented with Golden Open Acrylics with great results. Normally, acrylics aren’t recommended for this technique but these paints worked well — highly saturated colors and a pleasure to work with. They didn’t dry out while working (I added a bit of medium and thinner while mixing the colors). I used lightweight printmaking paper — Rives BFK, and some pastel drawing paper. You can also use fabric and fabric paints.
silver minnow 
What an interesting technique. I don’t know anything about gelatin plates-I will look it up- but the results are beautiful. Leaf shapes are so appealing. I’m working on leaves too at the moment. I hope my experiments turn out half as well as these.