Thanks to all of you, guys! You're awesome! I do realize that I know very little about lightning, so I definitely need to spend time to read/watch videos about that. Display calibration is a great idea too, and I'll probably get X-RITE ColorMunki Display and passport for proper colors and white balance.
Regarding the Gary Fong's kit, it also includes the grey dome, and Gary says it's more accurate to use it instead of just grey flat surface. Not sure how accurate this is.
Actually, I got 85 1.2ii as an equipment loan from Canon, and this is indeed a wonderful lens. Maybe I'll get it sometime. And I LOVE Canon for offering its customers great customer support and equipment loans.
Anyway, thanks for your time and effort! It was very useful
My gf looks very happy while reading your comments