A black and white photo of a group of young men

(A high resolution,Best quality,Realistic),Boys learn in the classroom，15year old，pondering，(Portrait,Character) 's (shoun:1.1),(Side view:1.1),Portrait in (Classic charcoal style:1.2) with (Fine, detailedshadows:1.1),The image is (Exceptional quality:1.2), with (清晰's线条:1.1) and (Subtle tones:1.1) Create an (true to life:1.37) . the lighting is subdued， (Natural:1.1), Emphasize the contours of his face，adding depth to the overall composition.This artwork captures the beauty and grace of teenagers,

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(A high resolution,Best quality,Realistic),Boys learn in the classroom，15year old，pondering，(Portrait,Character) 's (shoun:1.1),(Side view:1.1),Portrait in (Classic charcoal style:1.2) with (Fine, detailedshadows:1.1),The image is (Exceptional quality:1.2), with (清晰's线条:1.1) and (Subtle tones:1.1) Create an (true to life:1.37) . the lighting is subdued， (Natural:1.1), Emphasize the contours of his face，adding depth to the overall composition.This artwork captures the beauty and grace of teenagers,

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