Hi, The site does look clean and to the point – here are a couple of things
1)your h1 tag “Welcome to Betting Bonuses” should be the same as your keyword phrase – which I’m guessing is “Best UK Betting Bonuses”
2) you should have a short paragraph at the top of you page – a simple explanation of what the site is about
3) Instead of alt tags being something like alt=”William Hill” try your keyword phrase in that as well or alt=”williamhill betting bonus”
Good luck