Well, since I'm your friend IRL, and can't really give you a straight answer, I'm going to tell you based on my feelings towards them, not "/10". I really like the background in the top one, but I have to say... It doesn't go with the render. You should change the render to something a little; how to say this: "Cooler". I've already told you I really like the Kratos sig for some reason. I don't know, I just really like it. Especially the secondary, red Kratos. For the popout, I don't really know about the render quality. I know you're still practicing at blending, and that's good. I really like the metallic text and that font (Mael), but I don't know if the color and texture go with the feel of the sig. I also really like the simplicity and, well, "sandy-ness" of the background. Bite down on that post. xD
Reasoning would help a lot. I'm fine with your rating, but I would like to know why so I can improve upon it. 7 8 For the first one, I like abstract, but I think this might be overdoing it a little. For me personally; everyone has their own style and likes, so I leave the judgement of your own work up to you. I like the effect of the second one and the simple colors. I've used the whole mirror-like effect before myself and it always turns out as something I'm proud to display.
I just dont like brushed sigs, they are old and very out of style. Not liking the colors, the typo, and the lighting could use work. 3.5 3
All of your signatures are crazy! They're awesome. Deffinitely keep up the great work; I just really like them all. :3