O.K. I have done dragonology, too. I study the Dungeons & Dragons dragons, chromatic and metallic. The two books titled Draconomicon also have other species. I saw your dragon breeds, and they remind me of my first dragon creation; a space dragon. It was stark glow white, had 3 horns upon its head turned backwards that were black, wings, the claws and teeth were black too, orange luminous eyes (one color), spade tail, and a green tongue. It could breath plasma attacks. The other dragon I've done is a peach colored dragon. Simple fire breath attack. I'm going to reign the sound dragon, thank you.