No, I'm not an expert. :P That's just one of the things that I try to do in my own skins, although mine typically use colors that are vastly different from the default. Just people seem to appreciate more skins that don't look like the default, and you've got some really good ideas here, you just need to compliment them. What I do is I have a friend who absolutely loves art, design, graphics etc and I consult him on these things. He can't do HTML and CSS at all so together we make a good team and learn from each other.