Deep Dreamers, here’s another wonderful repository of open-access images: The National Gallery of Art makes open-access works in its collection available in a dedicated website. Go to NGA Images to see and choose from among over 51,000 digitized open-access works. You’ll find everything from Impressionist paintings to iconic works by U.S. artists.
The site has a particularly useful feature: Select the most convenient image size and resolution. What is more, the NGA has organized images into various collections to make searching easier.