The flames look awful. Get rid.
Other than that, there seem to be a lot of thick lines, which I personally don't like (the border and between the nav links especially).
The green at the top conflicts with the color scheme and is too dark to have any real good contrast effect (which probably wouldn't look good anyway). I'd either get rid of it or change it to a red/orange hue.
I'd change the title in the corner to white instead of orange.
Could do with some nice gradients to make it look a bit nicer.
Also, a tip: Use lorem ipsum,
something from wikipedia,
anything that isn't that uniform text. It's impossible to gauge how it will look when the text lines up like that.