Looks like everyone had fun and grabbed some good shots.
Fozzie: Number One looked the best, colours looked more natural for the available light. I liked the crop of just the convention centre, not so busy. The other two lacked contrast and didn't appear balanced.
Oli: Whoa ! What happened ? The sky is more blue than a smurf ?
DanielA: The second shot is a ripper ! Colour looks great and the highlights are not blown. Has a very natural look and a great dark mood to the image. Agree with the others about the crop and camera placement just another 2 feet
I also liked the 4th image, was there any colour change or gradient applied to the sky ? That's a fascinating colour.
BigV: The 1st image was interesting, I liked the soft appearance of the lights over the water. The foyer lights from the Convention Centre tend to distract you to the right side of the image doesn't help that the left is quite dark too. Your second post I thought was much nicer, you kept the same 'soft' mood with the water and there are no bright lights to distract the viewer, I liked this one the best.
Oh well I'm seriously jealous, would have loved to have joined the troop but had domestic duties that particular friday. Hope to make to the next one if not will meet the people heading to gluepot.
/M.