ultra-realistic scene of two elegant black swans on a calm blue clear lake, the swans facing each other with their necks curved together forming a perfect heart shape, soft pastel dawn sky with golden and pink hues reflecting on the water, gently rippling glass-like lake surface, detailed feather texture on swans with crisp highlights and shadows, natural soft lighting, high dynamic range and background contrast, photorealistic nature photography, sharp focus on swans, high depth of field, National Geographic style realism, tranquil serene mood --s 50 --raw
