the only thing to detract from this piece is the sharpness/lack of aa of the dark outlining 'round each mouse, and perhaps the number of colours used in the checkmarks... but otherwise I think you did a good job.
I don't know, fr0st is in his own little world.
I like how the mouse is a little dirty. It's a nice touch. Overall the piece is well-done. You're right, that is a lot of colors.
Brings back lots of old memories!