colorful hippo faces: a playful and vibrant cartoon art collection

colorful hippo faces cartoon style hdr monochromatic harmony cute ashcan school duckcore character design art playful illustrations vibrant hippos characters collection animal whimsical wall artwork cartoons designs portraits faces: group brightly colored hippopotamuses pictograph stoneage depicted sitting together red brick wall expressions distinctive soft noses exaggerated features realism clean outlines black borderlines background gray adding sense disorder composition