I really like the first one. It's incredibly sharp, and I can imagine all the vibrant colors that were in this scene (before you converted it). :thumbup: The others don't do much for me, but they're nice people shots nevertheless.
EDIT: I also like the one with the lady holding up that 'IMPEACH' sign. I think it would be a lot better if it was just her in the wheel chair and the lady standing behind her in this shot, but obviously you couldn't prevent that.