DSC - HERBIE the Robot

Hey, guys! This is HERBIE the robot. It was a daily sketch challenge so I don't really know details about him, but here is what they said about him:
H.E.R.B.I.E. (Humanoid Experimental Robot, B-Type, Integrated Electronics) is a robot helper created by Reed Richards to serve the Fantastic Four. The character was initially concieved for the 1978 Fantastic Four animated series and was integrated into comics continuity shortly thereafter. He is also very prominent in the FRANKLIN RICHARDS comic strip by Eliopoulos & Sumerak.
Anyway, it took me 25 minutes to draw(traditionally) and then I added an effect in Illustrator.
PS: on an unrelated note, does anyone have suggestions for a graphic tablet? I want to buy one but I have absolutely no idea what to get...