Hey, very nice. Can I just make a bit of constructive criticism? Although the style of that is cool, they can only really be used on a forum with that blue background colour. That's probably not gonna be one of the most popular colours around, so maybe if you made some on some white, black and transparent backgorunds they could prove very useful to people.
Unless of course you made them for your own board with that bg colour and I am talking right out of my arse...again!
D'oh!