The review campaign seems like a good idea for know as it will give you a good idea about what gamblers expect from your casinos and what improvements they want you to make. So, it Will basically tell you what you need to focus on to make your casino better. Am not so sure about the signature campaign, though. I think it's still too early to launch one.
First, you need to be more active on this thread so more gamblers know about the existance of your casino and, why not, give it a try. You need also think of adding more games. And please make the game page the main page instead of the current one which make the website look more like a blog than a casino, or at least replace it with something more interactive.