A while back I did a photoshop of what the TMP uniforms might look like with a bit more vivid color, as well as adding some color to the bridge:
The uniform just looks garish that way. I think it would be better to stick with the same basic colors but just make them a little more vivid..
Yeah, I was never 100% happy with how it turned out either, but never really bothered to improve it.
"Canon is only important to certain people because they have to cling to their knowledge of the minutiae. Open your mind! Be a Star Trek fan and open your mind and say, 'Where does Star Trek want to take me now'." - Leonard Nimoy