I like what’s here so far. I have no idea what the enemies are supposed to be (tacks and mouths)? I know they are placeholders but still.
You’re right about the tacks and the mouths are bug eggs, the kind you find organized all nice on leaves. They definitely need a little more refinement. The aim is something surrealist like Hieronymus Bosch’s work:
I’ll do a few more passes with different shapes and animations, will probably also switch to a color pallet with a few more darks.