Hi Christian,
I have a couple issues with your design elements. The header and navigation bar look under-developed and outdated these could be greatly improved.
Also the blog and forums don't particularly match the rest of the site, often confusing for users.
There's too much white space on the rest of the screen (body) so I suggest some kind of repeating background or complimentary colour.
I do love the cleanlines of the rest of the design though and those pocket rocket headers.
Take a look at these suggestions, I'd love to see this improve (I'm a bit of a online poker fan myself).

|