 ===Deleting valid and important images===  interpretation of NFCC#8, no valid article-specific NFCC rationale - is dead wrong and verges on vandalism. The policy states Non-free content is used only if its presence would significantly increase readers' understanding of the topic, and its omission would be detrimental to that understanding. These paintings precisely need to be seen to increase readers understanding of the topic. Don't do it again. The images are of important works by important artists, who played an important part in the visual arts of the 20th century and in case you don't know - this is an article about the visual arts of the 20th century. Visual art needs to be seen - please read WP:NFCC more carefully...  