improve the ceiling light fixture to look more realistic and high quality refine the material to a smooth matte or satin finish with subtle reflections enhance the light emission so it feels physically accurate with soft even diffusion and no blown out highlights add realistic glow falloff and gentle contact shadows on the ceiling improve edge sharpness and geometry clarity of the fixture keep the lighting natural mid day balanced slightly cool tone do not change the scene camera materials furniture or overall lighting setup only enhance the ceiling light quality