They look like they've tied themselves into a knot x3

Generally I think of male dragons as being black or red and female dragons as being white or silver.

So I'll go with.. red & white!

These dragons can be any gender you like. :)

I would have suggested blue and purple/pink just because they go well together, like your icon. :3

Im happy to see that black and white was not an option thought they do look like yin and yang here. I would say gold and green or white and blue. It may be fun to do them in the same color with different shades with accents of gold or silver? but that may not sell as well. People like contrast. If red gets chosen though, it would be cool to make his horns like dried lava (forget the official name for it) ive always found that idea cool!

I just didn't feel like painting a black one right now so I left black off the list. Maybe next time! Same with doing two of the same/similar shades.

AAWWW!! I can't wait to see the finished piece! SO ADORBS!

Orange and purple! =D
... aww, it's not on the list XD