I agree with Chris that you’ve made a good start but I find my eye being dragged from left to right and back again because of the animated banners you have down the right side and also in the body of the page.
I would say change the banners within the body to either static or logo banners ( however, Casino affiliates far more knowledgable than me can advise you better on that)
Either way, I’d recommend distancing the banners in the body from each other a little more, perhaps by using some text which I know you’ve mentioned adding.
However, it can’t go without mention that you’ve got off on the right foot by sticking that beautiful green and yellow banner up at the top of every page – a stroke of genius IMHO! 
Let us know if you need anything else and we’ll do our best to help