Neat fly! I am not familiar with crease flies. Looks like a well built fly. I like how you have your station in front of your PC with a good contrasting backdrop.
My only suggestion would be to create painting templates. Just create the shapes and patterns on a pc and print them on shipping labels or some other kind of cheap labels. The bigger the better. You will have to tape the labels together if the patterns run over several different labels. Then, use an exacto knife and cut out your patterns. Then paint and remove!
“Every human has four endowments- self awareness, conscience, independent will, & creative imagination.
These give us the ultimate human freedom... The power to choose, to respond, to change.”