I've added an image to the left side of the screen, tiling it vertically. The image is a simple gradient, and I've set the background color to match the right end of the gradient. In addition, I've set the image to remain fixed as the content scrolls (though I don't think that will matter with such a simple image).
I've also added an image to the h2 tag, set at 50% width, tiling horizontally.
CSS gives you much more control over background images and colors than plain HTML does.
You can use CSS to set