"A visually striking iPhone wallpaper featuring the Fibonacci spiral, rendered in vibrant colors inspired by Takashi Murakami’s pop-art style. The design includes bold, psychedelic hues, playful floral patterns, and cheerful, cartoon-like elements blended into the spiral. The background is clean yet dynamic, with soft gradients that amplify the pop aesthetic while maintaining balance. Perfect for a modern, eye-catching wallpaper. Ultra-high definition, 4K resolution."