If I'm selling artwork, unless it's dirt cheap I am not going to let the buyer skimp on fees. I want a quick transaction.
If the art is worth like 5 bucks, then that is the use case for another coin, not bitcoin.
I think most of the market understands this already.
You can start accepting lightning payments. Using the lightning nework will significantly reduce transaction fees and your customers will have not to wait long time for confirmation as transactions are instant.