preserve all geometry proportions bay rhythm curved panels slab thickness hierarchy and fa ade articulation exactly as they are primary structural elements main columns and slabs replace material with polished beige pigmented concrete smooth refined surface with subtle reflectivity light warm beige tone not glossy not stone like secondary fa ade elements curved panels and second line of columns replace material with olive green pigmented concrete sandblasted finish matte mineral texture slightly rough clearly differentiated from the polished beige concrete window and door frames change to burnished antique brass warm dark brass tone subtle patina soft reflectivity not shiny not satin gold glazing clear neutral glass not blue tinted high transparency reduce sky color saturation in reflections reflections should be soft and natural not mirror like lighting and atmosphere overcast northern european daylight soft diffuse light similar to berlin weather low contrast neutral color temperature no dramatic sunlight or strong shadows do not modify fa ade geometry curved articulation ground plane or landscape elements material and light adjustment only