I personally don't like the 'grungeyness' or whatever for sigs. That style had it's time, but now it just doesn't look so good anymore. Good job with the links though, but the text just seems so boring. Add some effects.
Hmmm... I must say this is surprising. I appreciate the inginuity that it took to put 2 pics together to make one. It is very good in that respect. However it is still good in terms of aesthetics too. For the grunginess you were going for it is great. I don't like grunge but w/e. CnC isn't about preference. Great job.