I've done back tho back return trips: and typically get a feel of being in a lab or testing facility... the staff are unmistakably reptilian... I can discern 50's theme, but have been in the presence of the dead as well. Second trips are usually very intense and dense (packed with visual information) and difficult to extrapolate. Interesting that you could control the space: I had a similar experience last weekend on a quarter of the best mushrooms I've ever seen lol