Review of trial website design

I'm not a designer at all, so I would be grateful if you could pull apart this design. I'm completely out of my comfort zone here *rips out hair* It's only an image of the design. Code-wise I'm comfortable with.

I can pick lots and lots of holes in it myself, but I don't know how I would go about improving on them or where to even start! Any help would be great

Poster :