what you can do is add some chart like this Top 10 Online Casino Sites – Read Player Reviews, Articles, Play Casino Games
Then you can use some colorful buttons.
Make the home page as the landing page NOT the description page. If they want something elaborate dive them to other pages where you should put the elaborate things.
Just make the Homepage more professional.
I suggest you to go through few sites with topic like yours. I believe you will be able to get some idea.
Thanks