Your shots look gorgeous! Especially the last one with the lighthouse, love the framing of it with the mountains in the back. Do you happen to use some kind of clouds mod, or is that part of the tropical theme?

I can't be totally sure where those are coming from (I'm sure BloodyPenguin does), but how I found them is that I fiddled with selecting different options on Daylight Classic. I have dynamic weather turned off, so that might be part of the combination. They look really beautiful and it seems to me they were there in the game long ago, before dynamic weather was added.