Great concept sketch. The look and the feel of the character and the clutter are starting to portray some feelings. Might suggest exagerate more of the pose to really get the feeling your describing. Nice work so far, keep it up.
Here is a sketch of what I was thinking I could do. I figured I would give myself the challenge of working on a hard surface character and came up with this android looking guy that is giving David the small device. I wanted to make a character that seems like a typical hard worker who sometimes gets the short end of the…