Hand-drawn, intricate architectural drawing, detailed lines, shading, texture, watercolor-style, sketchbook page, A4 size, scattered pencils, eraser crumbs, ruler, set square, protractor, desk lamp, dim lighting, warm tone, nostalgic atmosphere, old-school architect, bespectacled, white shirt, rolled-up sleeves, coffee cup, messy workspace, papers scattered, blueprint rolls, vintage drafting tools.