Christmas Portrait Ornaments?

I've created some ornaments based on portraits that I have digitally painted (not photoshopped). However, I have only sold one and I'd like to know the community's opinion on what I am doing wrong because I haven't sold any more. Are they not good enough? Are they priced too high? Serious answers only please---I am a mom of seven struggling to provide for them, this is my way of earning money. Here's the link... a href="http://www.9stines.com/Wanda-Portraits.html" rel="nofollow"http://www.9stines.com/Wanda-Portraits.h…/a make sure you click the bottom of the page to see all of them. Because on the second page, you actually see a scanned ornament that I am asking about here. The portraits are $90.00 and the ornaments are an additional $15.00. Please, I'd love to hear your feed back...serious replies only though :)