I think it would be nice if we could choose a maximum of about 3-5 photos we could feature on our profile. I find that when you upload a few, they tend to get a bit lost when you upload others.
Sometimes, I like a photo I uploaded ages ago and want to make sure people see that.
Yeah. I think having the selection between interests and the "Showing X of Y" would be good.
Though I don't think it should be something that's limited to subscribers since it can be used well as a base feature and increase the usefulness of the site for everybody. Then again, I don't think it should be on users to limit.
If they want to monetise, having one row for free and one more paid isn't too much of an issue.