I don't usually like sites with black backgrounds, but I think in this case it works well.
I don't like that you only have a PO box as a contact address - it makes me worry about how I will get in touch with you should their be a problem.
The art itself is gorgeous - very very classy stuff.
As far as
SEO goes, you have the same title tags on every page of the site, and I presume the same META description. The copy isn't very search engine optimised, but this may not be something that you are considering at the moment.
Parts of the site (the front page for example) have quite a professional feel, but others (about us, links) look as if they've had no thought put into them and are there as fillers - not as well laid out at all.
Great products though - I hope you do well.
If you are looking at
SEO and want to DIY, you can get a free copy of
299 Steps to Website Heaven, my ebook here.