I think your website is fine. It is simple, elegant, and to the point. I want to automatically click on your "target" logo, but I paused long enough to read your log line. I quickly learned by skimming through your website that you are a force to be reckoned with...with such accolades as the Smithsonian. Only a couple things, that is strictly a subjective point of view, is that the font seemed a little small and light against a light background, making it a little bit difficult to read. Also, it didn't seem "mobile" ready when viewed on a cell phone. (see DudaMobile, FiddleFly, or GoMobi if you are interested in something like that).
As far as not getting many visitors to your site, I did a generic google search for "wine labels" and after getting down to page 26, I quit looking for your site. Just a suggestion, but I would look at your tag words or meta words to make help get your listing higher in search results or possibly getting a small ad with Google adsense or something like that to help boost exposure, even if it's for a temporary amount of time.
That's all I've got for now. I think your website is fine if you are doing your own advertising and have it listed on your business cards, emails, twitter, facebook, pininterest, and etc. Good Luck and Make It A Great Day!