This is Star Scream from the Transformers. It is based on the Generation 1 cartoons I grew up with as a child. 3Dsmax model.

Optimus Prime head being worked on right now, will post that up soon.

I have not printed this successfully yet. I was experimenting with shells and infill, what I ended up with was an excellent model until the support material was removed. Once that was removed, Starscream looked like he went through battle and lost. He lost both of his arms and his leg broke off at the knee.

I'm sure it will print, but I only tried once. I'll give it another shot later and upload a picture.