Since I'm the Big Pic Nazi, I'll add the huge pics to your todo list
150kB+ is way too big. Make them 600 px on the longest side and around 40-50kB in size (as long as they don't look over compressed) and you will keep the surfers happy.
No pics are clickable in Gallery 2, so to keep the surfers and reviewers even happier. Make the thumbs clickable
