Tip if you're an uploader: upload to a private gallery first, just to check everything works/is to your liking. Once you're happy you can make it public. Might sound obvious but I learnt the hard way!
When it comes to galleries, I feel like less is more. No matter how much I might like the content, If a gallery runs to more than four pages, I can't really be bothered; anyone else feel the same way?