You’re probably going to get a lot of feedback telling you that you need a snazzier design, but I like the simplicity of your design. I think it lends a certain amount of credibility to your site, making it look like you’re a person who likes gambling online instead of just a webmaster trying to make some money. If you stick with that design, play up the “I’m a hobbyist and online casino player” too angle, and you’ll make money with the site.