A clean white background featuring four famous personalities illustrated in the same cute cartoon caricature style. Elon Musk, Donald Trump, Cristiano Ronaldo, and Roger Federer arranged in a balanced 2x2 collage. Oversized heads, expressive eyes, funny facial expressions, playful smirks, exaggerated features, detailed hair, soft shading, smooth digital illustration, sticker-like appearance, whimsical doodles around each character (rockets for Elon, stars for Trump, football icons for Ronaldo, tennis elements for Federer), high-quality cartoon artwork, adorable yet hilarious, modern social-media avatar style, ultra-detailed, vibrant, professional character design, clean composition, trending digital art, 4K.