Blender Cycles, how to get a high-quality image?

Question

Blender

https://drive.google.com/open?id=1MoliHFH9u-Ns4MrC...
- with shadows
- for glass to be glass
- no noise
Can you show me how to adjust materials, lights and other settings?
Thank you!

Answer 1

Problem solved:

1. increase in the number of passes. Surprisingly, at 1000 a good result was obtained.
   
2. denoising in new version of blender