A funny celebrity caricature portrait series in a minimalist ink-and-watercolor sketch style on a clean off-white paper background. Four separate portraits of Elon Musk, Donald Trump, Cristiano Ronaldo, and Virat Kohli. Each character has exaggerated facial features, oversized ears, playful crossed eyes, goofy smirks, exaggerated expressions, messy sketch lines, loose ink strokes, watercolor splashes, imperfect hand-drawn details, expressive brushwork, humorous personality, cream paper texture, black clothing or iconic outfit elements, high-detail caricature art, whimsical editorial illustration, modern sketchbook aesthetic, white negative space, quirky and charming, viral social media art, 4K ultra-detailed.