Say I would like to sell hand framed art prints, for decorations, on e.g. ebay.
I have some example posters and so on, mainly modern art works from various modern art gallery's, often in the form of posters I have mocked up myself, with added text. It won't be recent works, mainly things like Picasso or David Hockney.
What is the copyright situation? Do I need to pay someone if a customer buys a print?