Don't blame you for binning grunge ! And it's a sweet portrait - far more appealing than something grungey.
Shame about the background. If you'd moved her a little to the left so that she was completely in front of the wall it would have been a big improvement.
Actually, I think you could just about get away with cropping this along the edge of the wall and just below the hem of her dress to lose the distractions.
Best of luck with the job hunting (assuming it's for real and not just set up for the shot)
Good interpretation of the theme, although again I'm finding that the bits chopped off at the top of the frame distracting. Maybe another candidate for a crop? Although I actually think that a lower angle would have made this a more interesting shot.