I think they are all a little bit too big. They are cool but it looks a bit strange if half of the page is just the logo
Okay, a little bit exaggerated but you know what I mean.
If I look at other sites or forums, their logos are about 50-80px high, yours are 115 or 160px. You could resize them all easily but If I'm the only one who thinks so, ignore me
By the way: the font flajeen suggested is really nice. It fits to the first one, too (but only to the Custom Map Makers)