I would like to see some of the right-hand side cropped off, because for me, the single plane of the building front is the whole "deal", and the break in the front off to the far right hurts that. I would of course, leave in the discarded drink cup, and make the crop somewhere along the white highlight that runs top to bottom on the window. The line on the window is hurting it for me, and then the corner is not helping solidify her and the front of the building. That window highlight, the tall one, the line...that could be the border, or the crop could come inside of that, but I think the bright, small highlight on the window to the right of the line is distracting.
I think this might make a dynamite "square".
That cane! That hand! That hair! I see a whole 'nother level for this photograph if the body and darkness can be parlayed into a subtle shadow/highlight drama. THis is the kind of image that needs very careful, tricky printing/processing to pull out every last iota of goodness.