It's Princess Addie and Rhys from The Two Princesses of Bamarre by Gail Carson Levine! Love these guys
And the book is absolutely delightful. In the pic, Rhys is about to fly off to take care of some sorcerer stuff, and Addie's borrowing his cloak.
I'm a lot happier with how Addie turned out than how Rhys did...like, a LOT. But I decided to post it anyway, since I slaved over it
It took me FOREVER to get Rhy's pose looking right, and I'm still not terribly happy with it. Also, boots...I suck at them. But oh well...you win some, you lose some, I guess.
Princess Addie and Rhys (c) Gail Carson Levine