I've already commented on yours Sheep so I'll just give some feedback on others as well. Guess it kind of defeats the point of' 'rate the sig above you' but I don't really think there's enough active members to be able to keep a thread like this, fresh. Not yet anyway.
Chi-Ro: 9/10 - Already got high marks from me because it's Gunz, awesome game. Even disregarding that, I'd still give it a 9/10 'cause it's nicely made. The lighting is nice, render is nicely blended, text is subtle, it's a nice size and cleanly bordered. Good stuff.
Fireblasto: 8.5/10 (God I really hate integers don't I?) - Some of the effects are nice, lighting is good, colour scheme is also good. However, I feel it is let down by the very popular font and plasticy render. Nice work all the same.