- The background is really, really distracting and it doesn't tile properly. Away with it, yarr.
- You can keep the numbers in front of the links if you want, but at least get rid of the different colors on the numbers. You could make them all gray, for example.
- The header font for individual pages is too large.
- The gallery definitely needs to be remade from scratch. Look for simple, clean, gallery templates with thumbnails instead of a single page with lots of full-size images.
- The "logo" is a bit goofy. At least get rid of the underlining.
- If you're honestly going to charge 550 pounds for the pre-production, recording, editing, mixing AND mastering of a full-length album, you might want to ditch your prices from the website. I've been through the whole low-rate debate so many times I don't even give a shit about it anymore, but you might avoid a lot of cheapskates who don't have their shit together if you just mention you're affordable instead of showing all your cards from the get go.
Anyway, it's a good effort, and you're definitely on the right track there.