if you have PS you might want to try this tutorial to get your images as large as they can with the most details save. For example your file size is 98 kb, but the max level 150 kb. This would have gotten rid of the small jagged edges in the fine details of your photograph. Hope this helps
As a photo for this challenge it is also hard to give a high score for this photo because I don't get the impression of a crowd.
I didn't see the guy at first... the lighting makes him not stand out. I'm not sure if that's what you were going for, but it doesn't really meet the challenge for me.
The angle in this shot seems a bit awkward and I'm having a hard time making the connection that this shot envokes alone in a crowd. I do like the tone that was used.
The tilted horizon and the crop that cuts off the top of the back buildings is distracting. If your focus is the older building against the newer ones in the background, I think I would have moved to eliminate the foreground items (bush and man).