strict rules preserve all original linework exactly as is preserve all text annotations greek labels dimensions and numbers exactly do not modify redraw blur or replace any written content keep the drawing fully readable as a technical architectural document lighting shadows introduce realistic soft directional sunlight from the upper left add subtle but clear shadows to all protruding elements important geometry the central white volume is a projecting bay erker extending 60 cm outward this element must cast a soft shadow underneath and on adjacent surfaces window frames and wall recesses should also have slight depth shadows roof overhang should cast a thin shadow on the wall below shadow style soft diffused shadows not harsh or photorealistic maintain architectural illustration style not full realism shadows should enhance depth but not overpower the linework style textures apply subtle material textures light stone texture on walls soft plaster tones natural roof tiles keep textures minimal and clean avoid noise environment add minimal mediterranean landscape context light vegetation olive trees low plants neutral soft sky background atmosphere calm minimal architectural presentation style slight atmospheric softness final goal a refined architectural elevation with depth shadows and atmosphere while fully preserving the original drawing accuracy and all annotations