Well, you did sort of leave yourself open with the price, but I think she got a good deal and now you will know for next time, right? Live and learn.
I "sign" all my quilts that I make. It's done in embroidery, but it's signed. Some have just a heart, then my name and year, others have this little cat, then my name and the year.
BTW...Bill (hubby) was looking at your site and I never heard so many "oohs, ahhhs, and oh, so cute" from him before. lol
He's such a softy at times!