Great question!

I don't see you provided with example of your products. If you are indeed correct and you garnered good ranking and exposure what it might be (just from what you shared) is :
1. Your products are too expensive for what the consumer is willing to pay. Ask potential buyers, truly people interested in your type of craft and ask for their opinion. Update your pricing accordingly, maybe do a get 2 for price of one part of your model.
2. A lot of entrepreneurs fail to realize that the market they are going for is the wrong on. In your case you might be driving the wrong type of audience with the wrong keywords or not targeted enough.
Mgice these two efforts a try, if it doesn't help
Give me a call for free with code Unthink :) let's figure it out together