3D render of the letter, periwinkle and canary yellow hues merging seamlessly, submerged underwater with swirling currents; a bright light radiates from its center, casting high contrast shadows. The scene exudes an eerie atmosphere, depicted through photorealistic rendering with a rippling surface effect and hyper-detailed water textures. Dramatic lighting highlights the spectacle in 8K resolution. The vertical aspect ratio of 9:16 enhances the immersive experience with raw stylistic elements and personal touches, creating depth and intrigue.