I don't think that light blue is a good match. The background image in your version, I mean. There's nothing wrong with the image and light blue but it doesn't really go well with black and white combination of the...err... not sure what this is called, but this is what I mean
If you look at the image, you'll find out that black, blue, and white don't go along that well. You should get a few more opinions though. I might be the only one. The dark blue (the same color as Moderators name) could look great.
I tried testing but none of them seem satisfactory: Red Orange Dark Blue Goldenish Green