This is a sketch of Jaina Solo from the Legacy of the Force series. The final versions will appear on the second Legacy of the Force wallpaper also featuring characters such as Jaina's boys toys (Jag Fel & Zekk), her parents (Han and Leia), and some surprises...
The first wall, done with EnTaiho can be seen here
Oh and by the way, this time again, it isn't a real sketch as I did it with photoshop after the actual art was near to completion. I just wanted to post a preview before the full thing is completed. On the final version Jaina doesn't look that old, the sketch exagerated the aging.
Don't hesitate to comment.