Very cool, like it.

Nice, r u coloring it?

Se,xual dimorphism (the huge differences between males and females of certain species) is pretty extreme in your dragon folks, eh? Females have less angular faces than males, who sport more bony protrusions than females. Likewise the males are bulky with muscle, while females are smaller and more graceful... Obviously the males compete with eachother over the attention of females in a manner similar to peacoks, with more horns and spines being more desirable, while the females focus their energy on breeding.
Er, sorry, fantasy biology is a hobby..! When somebody draws men and women of their species at opposite ends of the ''what is se,xy?'' spectrum, I like to make up reasons why.

Indeed, Infestation, the females also have wings and short tails, where ast he men have no wings and long tails. The males also out number the females by nearly 3 to one.