First things first: I LOVE her hands. I find hands terribly hard to draw, but you drew hers so well. One thing that I think you could improve on is the folds of the dress. The dress design is very good, but it just looks a bit odd because of the way the folds go. Maybe you could get a friend to wear a long-sleeved dress like that and pose for you so you can draw a reference picture for the future, or something like that, just so you can better understand how cloth folds. Her face looks very wise. Overall, great job, keep up the good work!