I would definitely add a white border around your site's name so it's more visible.. or change the color to white because its so hard to read at the moment.
I don;t know, for me its just too basic. Like it doesn't any different from alot of other forums. doesn't jump out and grab me i guess.
If possible make more bigger font. Maybe the light blue not very suitable coz people not very much seeing all the contents. Try look here at DP, Green color but have hard green color. The header also not very clear to see. its seem like the blue color. Make it more contrast color and more bigger Hope this will help you Regards, Zek.