@Alexial I actually did draw the sprite first. Then I sprited it. I also made an evo for it. I think I'll try to make a scratch for Insecorpse, then I'll edit my post with that.
Here's a link to the evolution line- http://transdonald.deviantart.com/art/Insecorpse-Sprite-Evolution-Line-382471236 The evo is scratch btw.