If you want a great example of how the small details in The Lord of The Rings trilogy make it so impressive, take no further look than into the eyes of Galadriel, played by Cate Blanchett.
Most filmmakers wouldn’t got out of their way to make a special lighting rig to accomplish this small visual trick, but there aren’t a lot of filmmakers quite like Peter Jackson.
As noted by Reddit user epicazeroth, to show how thoroughly the filmmakers took painstaking efforts to bring her story to life in just a few details, you can see that Galadriel is the last elf in Middle Earth to have seen the light of the Trees of Valinor by the reflection of wondrous light that is found in her eyes.