2
Let me suggest you something first. You are not allowed to sell stuff that aren't designed/created by by you. For exmple, this painting isn't created by you and nor is royalty free image for commercial use. I suggest you to check your models because at the moment this is copyright infirgiment that can led you to ban.
https://www.cgtrader.com/3d-models/architectural/decoration/plaster-two-square-photo-frames-41
https://radeksmach.com/pub/media/catalog/product/x/a/xa403-radek-smach-4304-1920.jpg
https://radeksmach.com/brown-abstract-painting-xa403.html
Thanks.