I'm still working on that unifying accent color. Brown has been mentioned, as has tin bitz, and purple. I'm really trying to minimize metals and brown and purple just aren't my thing, but I'll try purple first, as its my daughter's favorite color (ugh).
As for the thin paints, well, I'm still struggling to control the flow when the paints are too thin. With small details, I struggle. (Might I also mention that I have a bit of a nervous twitch, carpal tunnel syndrome and my eyes are going - all medically documented?)