Weird question to answer here.
Well...I have no idea really how anybody but me looked...and I'm probably not the best sample for my "species". I did a lot of shapeshifting, typically through cell manipulations and such through the use of energy. (I think. I don't know much, so sue me.
) Typical me has 4 legs, a head (gasp!), decent tail (with a stinger-looking spike at the end), and a swapping of 2 wings and 2 pairs of wings, with the front two working more like rudimentary limbs. Blue scales, very small and smooth. Frill of spines running down the back, connected by a frill that starts right behind the center of 3 vaguely leaf-shaped plates on the top of my head. 2 spikes on the tip of muzzle.
No breath weapon that was "built in", persay, but I'm rather sure that energy workings provided for it if we needed that.
Origin? I have no idea. I've had similar memories with other dragons, (you know who you are.) but nothing in any way conclusive, given that the time between our lives was likely immense.
I'm a bit of an odd one out in that I hate most red meat. Ick. Fish, poultry, or greens for this dragon.