Good drawing! I like the pose you chose for this piece, fits very nicely. But a couple of things to keep an eye out for:
1.The repeating gaps in the shading make this piece feel like it was rushed towards the end, you could have done a better job there :)
2.The the glasses feel obtrusive, a good way to go about improving this would be letting the lenses have more dimension - They look as though you could poke her right though them! Try coloring in some lenses :9
Hope you have a nice day :)