Here are two images. One with luminar, one with RT. The RT image is washed out in the sky while the shadows remain dark. The Luminar image is bright in the shadows, the distant water is not flat, the sky retains blue (sorry, didn’t have a deep blue shot handy at the moment, but it still gets the point across), the clouds have SUPERB definition, and the water flora has bright detail.
I tried wavelets and local contrast and shadow/highlight recovery and a ton of manipulations of each of the settings and it’s not even close. There are slight halos in the Luminar image, but they are not obtrusive, but still noticeable. Neverthless, the output cannot be approximated well in RT at all.
The only controls required to get this look in Luminar were the Accent and Tone controls in Luminar. That’s crazy easy.