I sell a lot on ebay and I'll be honest, Ebay seems to be the low end price seller, if these are valuable arts and paintings, there's few other websites you might want to consider antiques.com, research your area for a consignment shop, I'm not sure what your location is but here in orange county Grason's estate is a place I put my stuff that's hard to ship, etc... There's not a huge market right now for art work, another option would be local auctions. Wherever you sell there's a percentage to share with someone. If you know the value of these art pieces it's a good start to sell anywhere, if you think you have something extremely valuable but don't know what it is, sothebys has a form online you fill out and you send a picture, they will value it for you. They don't take any items valued at less than $5k but they will value it and tell you where to sell it. I hope this helps you, good luck!