The design & logo are just superb, simple as that. It might be a little to light for some people but I personally like it.
Some of your service forums look empty, but other forums have a well amount of posts. But remember to keep a balance here, you shouldn't have an outrageous number of posts in an off topic forum than in a forum that is related to your subject.
The activity for such a new forum is quite amazing, you had 20 members active in the last 24 hours, I think that is a really good number for a forum this new.
Improvements? You might want to add a somewhat dark theme for other members. Try to fill out all the forums with more than 5 posts. I think you are on the right direction 😉.
I love the over-all look of the site, it's very appealing on the eye. As timestandsstill says there are just one or two too many categories on the main page, try to scale them down a little possibly? Spelling and such looks good, I don't see any errors and everything reads well. You can tell it's well thought out, i wish you well with it 🙂