This is the character Zoey from the cover of 'Fair Coin', a young adult novel by E.C. Myers. You can see how she appears on the book jacket here.
I always thought one day I would like to own a Sam Weber original, maybe a sketch that I could afford when I've started to collect my pension - if I was lucky. Now I have an original, for a superb price, direct from the artist and I still have my own teeth!
Mr Weber still has some work up for grabs on his website if you are interested.