Transform this photo into a professional digital fashion croquis (technical illustration). Keep the person’s pose exactly the same. Render the figure as an elongated fashion croquis (9-head proportion) with clean, precise outlines. The clothing should be illustrated in detail showing construction lines, seam placements, fabric drape, and textile pattern. Use a mix of flat color fills and subtle shading to show fabric weight and texture. Add technical callout annotations pointing to design details (collar type, button placement, fabric name). Background should be clean white with a subtle grid. Professional, editorial quality.