It is my first time to upload a photo processed from RAW. I suck at this... but this is the best I got - I had a problem with the overexposed ceiling. Maybe I should take two photos strongly underexposed and normally underexposed, and try to play with both... In general, it was something like "I have no idea what I am doing".
What is interesting, I can not see any noise in the photo. Is it possible that Polarr took care of it already?
7artisans 7.5mm F2.8 APS-C Fisheye; used Polarr to play with RAW