I put another two versions here and here.

I changed Ceres to more resemble Chibiusa who had something of a relationship with Hotaru in Crystal, which I think I'll pursue here but with a character that just looks like her (hence the purple head bow -I've no idea what to give to Hotaru). I gave Hakura and Michiru colors to match if a bit in reverse.

If anyone is curious I tried to give each of the senshi an individual primary color that is matched by the secondary color of another senshi. The two obvious exceptions are Ami (who has her own color as a secondary color) and Usagi (who's all over the place).

Opinions would be appreciated.