#10 is much better than 8 because #8 doesn't seem solid enough and i can barely read the words. Also, I need to give an impression of solidity in the design. Roofs are supposed to be solid and safe as well as environmentally friendly. Great job so far.
Also, I don't want to clients to think about the Rubic's cube, i just wanted to borrow the 3D effect of the squares from that concept, similar to the pic on the home page of my website. I want people to know it's a roofing company and not a tech company or math education company.