i made my own version of a "human mortar" i need to upload it soon maybe tomorrow but your is awesome i luv the boldness of your lines and ur excelent shading the only thing i don't really like is the lack of machine combining with his back idk if it is just me but i like stuff melded into the creature as much as possible or piercied through it [link] example its just straight through because the makers of it are to lazy but still very nice
I really like this one. You have a lot of great ideas and some nice shapes and textures. I think where you are lacking is in your anatomy. The torso is not bad, but the arms look "made up". My advice would be to get some anatomy books or look at real life and draw from that. The elbow and tricep and forearm dont really hook-up like that. Its ok to exaggerate but you have to get it correct first hope that helps.
It kinda reminds me of Pinky, from the movie make of Doom...Yeah, I know, the only reason I know that is because that movie makes me do the roflcopter every time I see it and it was just on tv the other day. Yay tacky gore!
Looks frightening. But most of all I like the way you draw. Having just arms and wheels as a fulcrum, all composition is amazingly steady. Lines are very confident. Your skills are amazing (Sorry for my terrible English)