A custom Half-Life background for my blog!

So, I managed to create a half-decent background for my blog, which of course features images from my favorite video game series. Due to the overall image size restriction of 300kb, I couldn't really achieve the results I wanted to. Several good images are lost behind the central blog area, and the same set of images are repeated on either size. I hope this 300kb restriction is lifted soon, or at least made more liberal (like 1 MB). Until then, I won't be able to come up with anything better than this.