Tattoo Help!

Alright so i am drawing my right sleeve. i want it to be a bunch of different animals mutating together going down my arm then at the end of it on my risk i want it to say evolution. the problem i am having is deciding on which animals to use. i know at the top i am going to have a deer head and the rest will come out of its mouth. i am going to have the antlers going onto my shoulder. all this is going to be a style kinda like Greg Simkins http://www.google.com/search?q=greg+simkins&hl=en&prmd=imvnso&tbm=isch&tbo=u&source=univ&sa=X&ei=lR7YTuOQDsWrsQLfnYWODg&sqi=2&ved=0CFAQsAQ&biw=1440&bih=809

any ideas?