I Need Hard Critiques!!! My exhibit pieces

[JAS_Photo]

Here are my choices from your flickr set:
1st row: 4
2nd row: 1, 2
3rd row: 2,3
4th row: 1, 2, 3, 4 but is there any way to bring in a little more detail in the blacks in #1?
5th row: 1,3,4
6th row: 1,4
7th row: 1,2,4
Of those I would pick no more than 12 at the most. Depending on the space they provide, you might even go to less than that. I would also have them printed and framed in an art gallery style format.
Three Tips for Selling/Showing Your Photos in a Gallery - photo.net
http://creativitypro.com/how-to-hang-an-art-exhibition
Hope this helps. First impressions are everything!! Good luck!