The first thing that jumps out at me is the unfortunate missed focus. Her sweater is tack-sharp and face very soft. Were that not the case, this would, IMO be a nice image ('though it does need to be leveled). Some fill light would have been beneficial here too; the shadows on her face are a bit strong for my taste, and the blacks in her trousers are completely blocked. I like the composition however; the handrail against which she is leaning makes an excellent compositional element. This would definitely be worth reshooting to correct these minor issues.