What do you think about my wife's web site?

[will i]

Home page...looks plain, simple and amateur. Too plain. Spice it up a bit.
About Us...looks like the best page to me.
Blog...I don't get it. Doesn't seem like a "blog" at all to me.

I would also advise better water marks that are centered on the photo. What is stopping someone from copying the pics and cutting off the bottom 1 inch margin?

You should also explain on the home page what payment methods u accept. Put a pic of Visa/Mastercard/Paypal or whatever forms you accept.

I think the whole facebook marketing strategy is a sham. FB is for kids looking to gossip. If they wanted to shop, I'm sure they would go to a retail site, not shop on FB. Sure, you can get a thousand kids who don't know 99% of their fb friends to like it, but are they gonna buy anything? Would you fill out a review card in a restaurant if they didn't give you the option to "dislike" it? It's also monitored by the gvmnt, so I'm sure it's a pretty good way to get audited. Especially if they see you making $$$ and want to make sure they are getting their proper cut. I would try selling your service on ebay or craigslist first, at least there are people there spending money.

Also, under "SHOP", you should put the photos into categories...such as "nautical" or "wildlife", etc.