The first one and the last one sound really cool. I think those could definitely be made into dungeons in an actual game.
Anyway, here are some dreams I've had over the years. My memories of them are kinda fuzzy so my descriptions might be kind of vague.
Dream 1(had this a few days ago)- I'm in some sort of forest/ swamp dungeon. I think it was supposed to be a part of a forest temple that you'd return to after beating it, when you get a certain item. I was swimming through scummy water, fighting deku babas that were dispersed throughout the area, and heading towards doors at the end of the area. Not too much to it that I can remember.
Dream 2- I somehow got stuck on a large Greudo sail ship. I had to get the hookshot so I could hook onto a cow that was outside and leave the ship(I don't even). The ship was painted a faded pink on the inside and Greudos were roaming all throughout the ship. I had to stun/ kill them before they caught sight of me, but eventually one of them caught me and threw me into a large theater room with a Hylian girl(again, I don't even).
Dream 3- I'm in some sort of temple. The air inside is very thick, the walls were a light, faded gray, there was grass, trees, and moss, and the temple itself had very mysterious, unsettling atmosphere akin to the Forest Temple. There were many different rooms and doors, some of which were locked by keys, and there were wolfos in some of the rooms that I had to kill. In the final room inside a treasure chest was a sword. I got it and the next thing I remember at the bottom of an equally unsettling lake.
Dream 4- I'm in deku form, in some sort of poisonous swamp. I'm going from one pillar to the next using deku flowers and fighting off the wild deku scrubs on the pillars. The whole area was very much like Woodfall in Majora's Mask.
There were 2 or 3 other ones I had but I don't remember enough about them to give a decent description.