Digital illustration evoking the styles of Marc Chagall, featuring a portrait of Marc Chagall, wearing a black beret and glasses. He has a light skin tone and a serious expression. The background is vibrant and abstract, with swirling, colorful patterns in shades of blue, pink, orange, and green. The text in the image is in a white, elegant cursive font and reads, 'Art must be an expression of love or it is nothing - Marc Chagall.' The text is integrated into the swirling patterns, adding to the dynamic and artistic feel of the image. The artist's signature is visible in the bottom right corner.