That set looks superb Hellshade, we used to just imagine as you say. I remember my partner building up a fantastic character, could change shape and get through all sorts of tight squeezes, only to press a button and the whole dungeon ceiling came down on her and killed her flat
We forgot to "look up" and ask the DM what the ceiling looked like.
Another was using rope to climb down and as we "forgot" to put something under the rope where it bent over the rocks it chafed and dropped the characters down a cliff what fun
.