4 cute cartoon character stickers, each with different hair and styles, with simple strokes, bright colors, simple lines, flat illustrations, white background, and colorful patterns. The characters have exaggerated expressions on their faces, such as happy smiles or serious facial features. They also wear sunglasses and hold green frogs in hand.,,in the style of charming character illustration, bold color palette , Scandinavian-inspired designs, thick texture,, flat design