Infernape vs. General Grievous

Alright, this is my part of the art trade I'm doing with . He wanted me to draw Infernape doing battle with someone and because he told me in another conversation that he was a huuuuuge fan of General Grievous from Star Wars it wasn't too hard for me to do the math. I hope you like it, man.
When I first started drawing this I became really frustrated because even the mere outlines of this piece kept me busy for so long (one of Grievous' arms took me ONE HOUR!) and so I wasn't in the mood for continuing to work on it for some time, but then at some point I picked it up again and once I overcame my perfectionism things just started rolling and I had a lot of fun with this picture. It was pretty challenging; for instance, a noob like me should NEVER even attempt to draw something with such complex and sophisticated design as Grievous, but in the end it turned out quite acceptable, I suppose.
I also tried to make Grievous look like his original movie appearance, but I couldn't really find any good references. And even if I did, it would have been hard as hell to copy them! So I had to improvise a lot. But I hope that you guys still like it!

I do not own Infernape or General Grievous. They belong to their respective owners. Surprised?