howdy this fine Tuesday to you itravelarts! always good to hear back from you..yes Ma'am auctions are very real, I've seen quite a few of them. here is the post of a craftsman who is a leatherworker and he sells stuff on Etsy which is another place that you could list your artwork and they do all the selling for you. but here is his post and how he is doing his auction:

https://steemit.com/steembay/@armadilloman/steembay-auction-handcrafted-iphone-7-or-6-flip-cover-case-from-the-armadillo-leather-shop