That is pretty damn cool idea for a sig. I give it a 10/10 for originality cause I aint seen one like it before.
First one would be 9/10 but I've seen that render too many times and the glass effect doesn't look that good so I give it 8/10 I'm not liking the second one that much, the BG is pretty plain. Doesn't look like you put that much effort into it. 6/10
8/10 - I'm liking the brushing and render, but I wish that the actual sig (the rectangle) was biger, and the bits of lightning feel out of place
I like the style of both. and the colors too. Not bad.. could use some better brushing though. 8/10 both.
5/10. The sig is just too chaotic with unappealing colors. The text is kinda boring as well. Sorry if I sound like a jerk.