A portrait of a boxer in the center of a boxing gym, showcasing the upper body down to the waist, with a confident smile, highlighting the boxer's attire and gloves. The gym setting should be depicted with a dynamic atmosphere, capturing the essence of strength and determination. The image should have a balanced composition with the boxer positioned centrally and the background filled with the boxing gym's elements, such as ropes, corner posts, and other gym details, to minimize the appearance of white edges. Rendered in 8K resolution.