First, 7/10. Text needs work, brushing seems pretty good but the whole thing seems grainy. Try not using so much red and yellow, other colors make sigs look better. Second, 7.5/10. Text again, render doesnt take up much space and lots of plain space
First one, render doesnt fit colors at all. Good brushing though, not a fan of the colors but maybe a new render and text could fix it. 6/10 Top right, Not loving the text, but color and brushing are great. 7/10 Bottom 2, Same brushing style, try different styles, renders dont seem blended and dont match the bg's. They also seem like they were just put there for the hell of it, place them and make them have a purpose. 6/10
Vector: I love vectors and this one is great. Only problem i see is the colors, i just really dont like the red tint to it. Try making it something else and see how it turns out. But its great, 8/10 EDIT: Wrong person... Herokeeper: Great style, i love it. Everything seems to flow pretty good and i like the look. Keep it up. 8.5/10