And the final matte.
I did a lot of small fine tuning only visible in the 4k version, but I think the overall atmosphere is much more cloudy and soft now. Previous version had a lot of sharp corners and painterly details I polished away.
I might still check the saturation levels once I do some matching with our studio monitors, but other than that it's finished now :D
Bhew, what an effort. Great challenge :)
Thanks for you input, comments and critique guys! Good luck everybody.