I've never given you my REAL opnion on these.
so here goes.
Pros.
+they're very different to everyone else's work
+for the amount of time you've been doing them, you've gotten very good ((largely thanks to me)) < / self gratification>
Cons.
+You need new fonts...badly Download fonts | dafont.com download from here, open the .zip file and then put the file that has ".ttf" in the fonts folder in control panel.
+The renders you're using are very low quality GameRenders - Your Source For Free Gaming Renders
look in the FORUMS there, not the option marked "renders"
+The best advice I can give you is to NOT use tutorials on how to make sigs, you need to teach yourself and in time, develop your own style.
don't mean to sound harsh but that's the best, most straightforward way of putting it.
keep going man...try and beat me .