represent the gravel in the courtyard significantly finer and of higher quality courtyard create a very fine elegant rounded gravel texture create a calm minimalist natural stone look generate a high quality architectural atmosphere make the courtyard appear calm and luxurious materials represent all material textures significantly more high quality and realistic create more depth effect and fine micro details use realistic material roughness and high quality reflections avoid producing flat or artificial surfaces make everything appear like real high end materials realism ultra realistic 4k 8k high end archviz rendering produce very high quality light reflections and material details make it look like a professional final corona renderer v ray rendering very important do not change architecture geometry or image framing do not move any furniture only improve materials lighting and texture quality
