unify the overall visual appearance of the architectural render while maintaining a consistent and photorealistic style set all columns and window frames to a clean anthracite color preserve the roof color exactly as it appears in the original image without any changes to its hue saturation or brightness ensure consistent materials lighting and shading across all surfaces remove any visible signs of manual color editing or patchy areas especially on the shelter structure seamlessly blend all elements so the image looks natural and cohesive improve texture consistency refine shadows and reflections and maintain realistic lighting the final result should look like a high quality unified architectural visualization with no visible edits
