Well, you could also work backwards and try to recreate your renders using an actual camera. You're probably going to have a very, very, VERY hard time recreating such extreme background blur. So from there : your renders would probably would look more realistic if they didn't have a cheesy blurry fake background *at all*.…
Yeah - @Filip5 , at the end of the day it really won't matter how much you tweak these materials. There are just way too many *other* dead giveaways telling right away that these are renders done by "playing around with sliders until it feels right somehow". Once you'll know more about cameras you'll realize that even your…