You may want to consider this relatively new way of getting paid for your artwork.

Pixels.com is one of the distribution channels. This is the way they describe what they offer:

Welcome to the largest, fastest-growing art and photography community in the world. Pixels is the premier online marketplace for buying and selling original art, prints, home decor, apparel, and more. With just a few clicks, you can open an account, upload your images, select the products that you want to sell, set your prices, and begin selling your art to the millions of buyers all over the world.

It can be very appealing since it is not necessary to concern yourself with packaging, insuring and shipping the artwork.

FineArtAmerica has another site like this where you can offer all sorts of products, even coffee mugs, each of which uses images of you art.

You upload photos, set the markup and they do the rest!

These make fabulous gifts. Take a peek at pixels.com/art/karlene+ellsworth