I went about as brown as I could get on this one. I did have the correct pieces to make the tail brown, but they're currently slated for a different MOC. I also had the correct pieces to make the underside of the upper arms brown, but they're being used on the KAREAREA falcon mod. I also know the ears have been made in brown, but I'd have to tear apart Jango Fett to get them.
As for the physical design, I added a pair of 1x6 flat liftarms to the head to fill in the hollow spot, and I added some bulk to the lower torso so it doesn't look half-starved. I did consider modifying the legs, but I think I would be unhappy with the results, so I went with the original shape.