There is a man standing in front of a chalk board

(1boy, photorealistic:1.4, masterpiece:1.2, ultra detailed, best quality, 4k), a handsome and muscular teacher writing on the chalkboard wearing a tight button up shirt and tight pants, perfect butt, large bulge in crotch, male, slim athletic body build, backdrop is a classroom, full body in image, with unparalleled attention to detail this photorealistic portrait combines the style of National Geographic, Capture every detail of his textured skin in 8k resolution, Leica digital SLR camera, his features are clearly visible from the deep-set eyes to the chiseled jawline, make this image a true masterpiece, Lift, (8K UHD, RAW Photograph, Photorealistic Portrait Leica Digital SLR, Lifelike images)