create an ultra realistic architectural visualization while preserving the existing architecture exactly as shown do not alter add remove or reposition any architectural elements dimensions openings walls stairs railing or furniture all walls should be finished in soft handmade plaster with gently rounded organic corners avoiding harsh sharp 90 degree edges the plaster should feel tactile natural subtly irregular and artisan made pay special attention to the stair railing the top handrail must be very rounded almost semicircular with completely soft edges and no sharp corners use natural warm sunlight realistic soft shadows authentic daylight natural wood subtle textures and rustic exposed wooden ceiling beams keep all materials understated tactile realistic and naturally imperfect photorealistic materials accurate reflections high end architectural photography calm and warm atmosphere