Realism in Blender (CGI)

Hello, I tried to create realistic CGI material, I was learning throughout the whole process about the different texture and reflection settings.
I know this is not a very good output but I wanted to share my learning period experience.
I tried cloth simulation, Texture painting, and a few other new stuff.
I am not sharing settings and process details for this render
as it is not a final output but you can rate it and help me with tips!