Detailed black and white pencil sketch of a young man with light stubble, resting his chin on his hand, with a subtle smile and a thoughtful gaze

Prompt

Using uploaded face as reference. 
Detailed graphite pencil sketch portrait of a handsome young man resting his face on his hand, subtle charming smile, soft gaze, messy textured hair, light stubble beard, wearing a casual unbuttoned collared shirt with rolled-up sleeves, artistic charcoal line art, fine cross-hatching shading technique, hand-drawn pencil texture, monochrome black and white drawing, plain white paper background, highly detailed facial features, masterstroke pencil drawing, 8k resolution.