This site will help you a great deal when choosing a color scheme.

http://www.ultimatecharger.com/color.html

I would not worry too much about tail dragger vs. tricycle gear. Yes, the learning curve is a little steeper, but it usually only takes students a dozen or so extra takeoffs to master it. I have taught students in the past using a Balsa USA Stick 40 Trainer. None of them had any trouble with handling it after a little practice.