Scooby-Doo, trippy, psychedelic colors, cartoonish, Shaggy Rogers, best friend, mystery solving, detective outfit, blue shirt, orange hat, ripped jeans, sneakers, holding a giant sandwich, sitting on a magical mushroom, surrounded by swirling patterns, neon lights, stars, clouds, dreamy atmosphere, 3/4 composition, close-up shot, vibrant colors, exaggerated expressions.