A few quick sketches of Raiwyn as they would be in feral form, and some close ups of details.
Character ref and further description here: http://www.furaffinity.net/full/30796655/
A little more about their anatomy:
Raiwyn is a mystic creature of the forest, so her core anatomy is not "of this earth" so to speak. That being said, they're best described as a Mule deer / Eastern dragon Hybrid. Her hind legs, head, and ears are nearly 100% Mule deer, with her torso/body being a "mule deer cross Ferret" so basically if a deer was as long and floppy as a Ferret. Their front limbs and tail have no earthly comparison, the front limbs are stocky and larger than the hind limbs (think snow leopard or other big cat) and their tail is a typical dragon.
Note that I've since updated her feral form to be longer and more Dragon-like, more art coming soon

Artist = Me