Sig 1: 8/10 - 825K
great lighting. the text looks great and works really well with the lighting and background, but it could make better use of the background space.

Sig 2: 8/10 - 825K
i really like the colors and the monochromacy. the soft lighting and blurred gradients give it an interesting depth.

Sig 3: 8/10 - 825K
Really good use of lighting and using the text (along with the blur) to show depth.

sig 4: 9/10 = 950K
good balance of unsharp mask and blur. great text and application. superb use of lighting.

total = 3.425M