match the atmosphere and color grading of a calm overcast blue hour architectural visualization soft cool daylight under a bright cloudy sky with subtle warm interior window glow 2700 3000k visible through glass overall palette cool desaturated blues and blue greys in the sky and shadows neutral concrete stone greys with gentle warm amber accents from interior lighting very low contrast smooth tonal transitions slightly lifted shadows controlled highlights no clipping clean crisp details natural realistic lighting diffuse skylight soft ambient occlusion minimal harsh shadows slight atmospheric haze for depth mild aerial perspective photoreal cinematic but subtle modern archviz look keep the existing geometry camera framing context materials and textures exactly the same change only lighting atmosphere exposure white balance and post processing color grade
