Masterpiece. UHD, 8K, 1 woman, solo, long pale blonde hair, heterochromatic eyes (blue and golden), wearing a sporty green bikini, swimming in the clear blue ocean, hair wet and sticking to her back, face above the water with a content smile, bright sunlight reflecting off the water, gentle waves surrounding her, distant shore in the background, peaceful and refreshing atmosphere, natural lighting, acrylic painting.