I'm just clicking around and getting an idea.
- Love the blue and orange for the team colors, but the green is quite bright and kind of clashes with the background. I would recommend darkening it a tad. Funnily enough the user who doesn't have an avatar has a green color for their avatar the code is: #85E085 it might look good?
- I would create a Forum Flock avatar for all users to have when they join and then you could also use this for advertising at other communities. (The paper bird thing would be simple, but adding ForumFlock somehow might be good too!)
- Layout seems good so far, no need to expand yet until your member base start showing an interest in more specific areas.
- Shop looks good so far!
- "Forum Flock - An All-New General Discussion Forum" I like it as it exactly word for word what you are, but what about adding a small motto in the banner of the forum as well, right under Forum Flock. "A place to flock to."
- - Begin coming up with #'s and cool mottos to help set yourself apart from other communities.
These are the only comments and suggestions I can think of so far. You have a good concept, I think you've truly started with a great theme and this will help set yourself apart from others as well!