Try to make your full size pics 30k or larger. You have a few that are under that. Some TGPs will not accept your gallery for this.
If I were you, I'd do something with the spacing of the thumbs. Your thumbs need to be a little tighter together. The ones on the outside are too close to the border. Also, as a general rule, make the table a fixed value, as opposed to a percentage.
Put some keywords in your meta tags, but be careful to not use any words that will get your gallery rejected by any scripts.
Your logo up top there has a problem with the color. You can see what I'm talking about in the lower left part of it.
Other than these suggestions, it's not too bad.
