I don't want to do hybrid dragons or dragons like "snake dragon" or "Insect dragon". I know I want to keep elements of life and of nature. Hence the vanity and intellect and things like that (being the life aspects) as well as the elemental ones like the atmosphere, fire, lightening. 

I'll see what I can do. I already have some ideas:
Dream/Illusion Dragon
Tropical Dragon
Diamond/Pressure Dragon
Snow Dragon (The Aurora Dragon is a northern dragon but is based off the aurora borealis, not snow in general)
Love/Lust Dragon (A dragon based off the connective emotions or presence)
Gravity Dragon 
Silent Dragon
Sound Dragon.
Predatory Dragon
But, some of these I'm on the fence about as they're a little too..... themed, rather than elemental. Like the predatory dragon, the dream dragon and the Love dragon. I can't really explain it that well XD

But those are all ideas. they're all elements of something. Instead of like, combination dragons such as lava dragons (fire and mountain) or Star dragons (Celestial and solar). I'm trying really hard to make sure everyone's dragons are extremely unique. That's my main goal. I want them all to be elemental, but hugely different from others. The only ones I've kind of fallen on that one are dragons like the Swamp dragon (Which was one of the last colors I could think of haha the group I started with demanded that extra dragon.)

I donno, we'll have to see. I'll think of something that fits the style/theme of what I have going.