4/10 dont really like the text, render or background... 5/10 dont like the text or the render...dont blend it as much..
Love halo, love final fantasy, (well it looks like it, kinda hard to make out, is it Advent children?) + Nice blending of the colors. 8.5/10
6+/10 - it's sig made by tut and i'm not fan of BG 7/10 - nice concept but render don't suit BG. Try to blend it more.
both of your texts on your sigs are pretty good, the color on the top one is unique. nice blending and use of sharpening. i give it a 8/10. the bottom gets a 7/10, it seems kind of plain with just a black backround, but the effects around the render are cool.