留著鬍子的男子穿著奶油色毛衣和牛仔褲，坐在藍色工作室背景的立方體上

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Create a minimalist studio portrait of a confident man seated casually on a simple geometric cube against a solid muted blue background. He sits with his legs apart and feet planted firmly on the ground, leaning slightly forward with both hands resting naturally near his knees, creating a grounded, relaxed, and quietly powerful posture. He has medium-length, textured dark hair styled with natural volume, a full, well-groomed beard, and an intense yet calm expression as he looks directly at the camera. His outfit is clean and understated: a soft off-white crewneck sweatshirt with a relaxed fit, paired with classic blue denim jeans featuring elasticated cuffs. He wears modern blue athletic sneakers with white accents, adding a casual, contemporary streetwear touch. The background is a smooth, seamless blue studio wall with no distractions, emphasizing simplicity and balance. Lighting is soft, diffused, and frontal, evenly illuminating the subject while gently sculpting facial features and fabric texture without harsh shadows. The color palette is cohesive and calm. Use aspect ratio 4:5.