Hi - Very interesting.... I guess with Valentines Day coming up you may have a few cards created!! Good Luck
For some reason it brought me to an anti-virus program site at first lol (might be my computer or spyware in my comp) Anyways, cute site! I really like the grass background on the bottom! For your adsense, I would keep all of the text/link white for better blending
Cool site. If you can add more designs to chose from it'd be great. Ads are hard to read. Which is good for the visitors not so good for you. Good Luck