The Head

The head design I have at the top of the page is my first idea for R5-4M's head.  I thought it would be interesting if R5-4M fought in the Clone Wars aboard an ARC-170 starfighter like this one:

I don't know of any other R2 Builders out there attempting a color scheme like this so I thought it might be unique.  This way I could easily identify him in a room full of other R2 Builders' creations.