Modern gymnasium interior, incorporating plastered concrete walls, sleek minimalist aesthetic, large windows with natural light pouring in, polished wooden floors reflecting light, rows of treadmills and exercise equipment, athletic wear-clad individuals exercising in various postures, some sitting on benches, others stretching or running, basketball hoop and net suspended from ceiling, climbing wall with colorful holds, softbox lighting, warm atmosphere, 3/4 composition, shallow depth of field, realistic texture, detailed concrete pattern.