Hmm.. the icons are nice, but the bar with the "User's icons:" for people who have many icons looks a bit bad. I want to suggest that you create a small link (something like the reputation button) to the icons of someone and put it under the Reputation bar. So when you click the link, it opens up a small window with the user's icons.
Might this be an idea? That way the icons could be bigger, or have descriptions to them showing what they mean.
