There’s a newer version (v0.82) of OpenDRT for Resolve here:
https://github.com/jedypod/open-display-transform/tree/main/OpenDRT/resolve
Here’s the image in Nuke with OpenDRT, looking similar to yours. The clouds have a bit better detail, which I believe is one of the things that improved in v82 from v81.
Right! For example if I raise the exposure one stop and boost saturation a little I get this which looks very plausible to me as sky:
I can also adjust the color temperature (kelvin & tint) a bit and get this:
The point being that it’s a great neutral starting point from which an artist can take the image in whatever direction is desired.