Something minor, but I think it's worth mentioning:
You cannot not read
The following is meant in general, but erik's picture is a good example.
I really like the picture erik posted (it could have some more depth, but that's not the point).
The word "Checkpoint" is clearly visible in the picture. So when you are looking at the page, your attention will be constantly drawn away from the content, because your "brain" reads the sign (probably over and over again).
At least it's on the right side. The left side would be worse, because you start reading/looking from the left.
I'm not asking to reject the picture, just saying it's not the optimum.
Maybe you keep this in mind when doing other screens...
Hans-Smartass-Holo M.A.