I decided to use Unreal engine to test out cinematic quality render as I normal render in Vray or Arnold. Surprisingly it gave me almost same quality of render as I can get using offline rendering engines. I use my Blind girl portrait to draw a comparison of the experience and results that I could get with unreal engine. I tried to add as much details I as possibly could. This includes 3 surface layers of skin and peach hair on top.
I did use Texturing XYZ displacement maps and some photographs to project extra details to get the final results.