more robots!

another venture into the land of the mechanical for me. I've been looking through books trying to concentrate on more realistic moving parts and joints. I dunno how well i succeded with this one, i think the arms are looking alittle less cartoonish then ive drawn them before, but i did have fun with this guy.
He's a Terrain Recovery Bot, hence his big wheels. He's able to rotate his body while remaining stationary 360 degrees and can overcome most rocky or steep earth. He's meant to recover the parts of destroyed equipment and vehicles.
Im including both the original drawing and the colored version of this drawing below.

the original sketch was done in bic ballpoint pen. The sketch was scaned and brought into photoshop where i did the coloring with a graphics tablet.
enjoy!