My Novel's Original Characters

I don't usually mention it here on my art station (mostly because it usually isn't relevant), but I'm currently working on a novel, and a couple days ago I finished my final draft! All I have left now is editing and getting outside feedback. In celebration I drew some of my story's main characters in my sketchbook this week. Some of them turned out better than others.

"Shift" (working title for now) is a action/fantasy story set in the modern United States. Aurora Fen, an ordinary teenager, is suddenly transformed into a dragon against her will, plunging her into a secretive battle between the US government and a militant conspiracy known as the Cadmus. Though she is terrified and inexperienced in this new world, it will take all of her bravery if she has any hope of keeping her friends, or herself, safe.