Minimalist Blue Portrait

Create a minimalist portrait depicting a confident gentleman casually sitting on a simple geometric cube with a solid, soft blue background. He spread his legs, feet firmly planted on the ground, leaning slightly forward, hands naturally placed near his knees, presenting a posture that was calm, relaxed, yet restrained and powerful. He sports medium-length, textured dark hair with a naturally fluffy style, sporting a thick, neatly trimmed beard, and gazes fixedly and calmly at the camera. His outfit was clean and understated: a soft off-white crewneck sweatshirt with a loose fit, paired with classic blue jeans and elastic cuffs. He wore modern blue sneakers with white accents, adding a touch of casual street fashion. The background is a smooth, seamless blue studio wall with no distractions, emphasizing simplicity and balance. The lighting is soft, diffuse, and frontal, evenly illuminating the subject while gently outlining facial features and fabric textures without harsh shadows. The overall color scheme is harmonious and calm. Use a 4:5 aspect ratio.