You don't have to be a "starving artist" .. you just have to have the right tools to sell art on ebay. Ebay has a large traffic volume and the trick is to writing great ads and getting that traffic to your auction!
I have sold arts and crafts on ebay, and I still do, but you can get stuck in a rut and be too routine, it doesn't hurt to shake it up a bit, and get some fresh ideas.. as the needs and wants of people change.
Remember, you still need good pictures, no matter what ebook you buy or read! Pictures are worth a 1000 words online, if you can't take good pictures... get someone who can, it makes all the difference in the price you end up getting for your art.. Take a look thru the ART section of ebay.. especially the SELF REPRESENTING ARTISTS and look at their pictures, these are usually very detailed, but watch out for some of them... I have seen some pictures with big bright flash reflections in the middle of the painting, and they are trying to sell it!.. that would put me off a bit, if I couldn't see the center of the painting!... Mostly common sense, .. sell art on ebay, the way you would look to buy art on ebay..