Appreciate your efforts buddy!
I found another Cvar that may help with the skylight, tho its effect isn’t that much :
r.HeterogeneousVolumes.IndirectLighting 1
Also, I’m wondering how you managed to get that fluffy cloud shader (the one in the background), I’ve trying to achieve that look but increasing density will increase shadows on the other part of the cloud (I made a fake light to help enlighten it a bit)