If you are willing to take the long route, black pastel albinos are amazing as well as black pastel hypos. I want to go for both when I make all the ingredients! I have yet to see an adult but I love what black pastels do with the yellow belly gene, and as far as I've seen most yellow belly combos just improve with age...

In all reality, 2-3 years from now when you get that female up to size your mind will have changed many times.