First one is cool, nice colours and i like the tech style. 9/10 Need to say same about the second one. Nice brushing. 8.5/10
Thats is pritty cool, I think it might have been better with a slightly lighter colour, good blending though. 7/10
dont worry about it. i'm just learning. good backgrounds on both. top one is better. top: 9/10 bottom: 7.5/10