I just had a look at your things and I think you do a great job. Don't worry about this other person, they are obviously insecure about something. There's so many businesses out there that do the same thing, whether it's hair accessories, clothing, furniture etc. When it comes down to it, people will buy from you if they like your creations. Just use her negativity to drive your success!
If you enjoy what you do, then just continue to do it. You have lots of fans on your fanpage. They wouldn't be there if they didn't think you did a great job. Hold your head up hun.