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Use-case: architectural sketch Subject: a detailed study of a cathedral dome with geometric construction lines Context: drawn on parchment with proportional guides, measurements, and handwritten notes Style: Leonardo da Vinci architectural drawing style, sepia ink, fine pen strokes, Renaissance drafting techniques Composition: cross-section and exterior view combined, geometric overlays, balanced technical layout Constraints: no modern architecture elements, no color rendering, maintain hand-dra…


































