I shrunk the eyes, made the tube more round, made the upper arms more round, gave him like a football armor chest and added pecks (let me know if you think they look like boobs), and fixed his head by making it more cat like. I also fixed the mouth and fanned out his feet.
Anything below this is an older verison
I like to thank the people who showed me the links to show me how to texture. And the constructive criticism given by the community! My Mewtwo has changed dramatically from the original design for the better! What I changed, the back of the head is now rounder. and the eye pieces "blend" in with the model, the thighs and lower torso where the tail starts are rounder, a few people asked for that, but I left the arms and legs blocky because it looks more minecraft like and I think that looks better (the mod leaders may disagree), also i added a block around the base of the neck so it blends in better.
Again thank you!