Progress?

My current idea is that bunch of creatures are running around having babies, and you have to get them to evolve into the form you want by wiping out ones you don’t want to reproduce via natural disasters and such. It’s not terribly original, but I hope it will be fun. Anyway, here are some of the creatures. Current traits: color, furriness, height, ears, and head shape (not sure if I’ll keep this one.)