The colour scheme is alright, but I think the main text would look better with black instead of red as the main colour. Another way to make it quicker to download would be to have a smaller background image (ie a gradient say 20px high x 1500 wide instead of the massive fullscreen image you are currently using). I like the effect of the background, but even with broadband, it took a while to download.
Finally, you could improve the code by validating it at http://validator.w3.org/
. Overall? I think Kurashu is right - about 6.