First impression:
It's unusual to see a gallery that doesn't have a banner on the top.
Followed by:
The layout is different, but perfect for my 1600x1200.
The font in the center is too big, maybe try a 12.
Overall it's pleasant on the eye.
Plus:
The large images need to be focused.
Summary:
A fresh approach.
Not a bad effort at all.
Just some minor modifications to get you on your way.
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Simply Better.