Hi Tony. First reactions are that your site loads up very quickly, which is great. The checkout and cart pages are easy to find on the top header, which is excellent. The about us and policy pages need some information on them, which I presume is the next stage?
The categories on the left hand side need to be bolder. Perhaps even just using upper case might help.
The tees themselves are fine, with realistic pricing. Couple of the categories need some company though.
It doesn't need a massive amount of work on it, but a bit of tweaking here and there, to present your items a little better would beneficial.
Hope this helps.