Oil painting, tom bagshaw art, close-up portrait of a character, a girl swims underwater in the ocean, against the background of tropical fish, around colorful corals, close-up portrait of a character, very cinematic, realistic, cinematic, cinematic aesthetics, photorealistic, high quality, octane render, high color rendering, dramatic natural lighting, reflective catchlights, backlighting, hd, 32k, uhd, intense specularity, strong reflection, very detailed, detailed and elaborate, ultra detailed, ultra res