That flight was beautiful and a nice reward , hopefully you got it in 4K
I am all about Risk and Common Sense flying , If your going to fly thu the clouds or fog , you really need a flashing light on top such as a
Lume cube.
You might also want to consider a Wet Suit to Minimize Risk of a Battery Disconnect in the Fog .
The Drone itself as you state is very good with Fresh Rain Water but the Battery not so much we have seen plenty of Disconnects do to moisture and there is very little warning. The
Air 2 will give you a 5 Second Warning. The
Mavic 2 None .
These two things will help minimize risk in your future adventures.
Phantomrain.org
Gear to fly in the rain.