These are my votes;
kanokarob's enderman spy
Trogdorocks's creeper demoman
supr_g33k_7120's cow and mooshroom spies
DlaHLlama's villager medic
xPatchYz's and simo48's scout skins (torn between them)
Barzillai's monoculus ghast (I thought it worked perfectly to be honest)
I have tried and failed miserably at making character skins thus far, so I won't even attempt mob skins just yet. However, I do think this is a fantastic idea and I hope we get even more submissions as these first ones have already been phenomenal, and I think it can only get better.