I've created this Scene In blender 2.82 and gave it a test render with 350 Samples, but the quality was very low. Now I tried it with 600 Samples, but it didn't get better. What am I doing wrong?
Info: I'm using blender 2.82 with cycles on my CPU. I set the render samples to 600, set the Light bounces to 6 and used the basic built-in denoiser.

