Using the provided reference image, transform the portrait into a vintage hand-drawn graphite and charcoal sketch on warm beige textured paper. Preserve the same identity, pose, framing, hairstyle, beanie, hair clips, sweater, accessories, and facial expression from the reference, but convert the photo into a monochrome pencil illustration with subtle sepia paper tone. Render visible sketch construction lines, rough crosshatching, soft smudged shading, fine hair strokes, fabric knit texture, and slightly unfinished edges around the shoulders and hat. Keep the composition as a bust portrait centered on a simple blank paper background, with no added objects, text, border, or watermark. Style intensity: highly detailed realistic graphite portrait. Paper tone: warm aged beige. Line quality: rough expressive pencil and charcoal strokes.
