In case you don't see it clearly, those are fish and birds floating.
The exposition itself was well structured. Sister cameo FTW!
If you look carefully, you will see the thing at the end of .Rec
This one was good. Mindbending and it made no sense whatsoever.
This is the closest I got to the Penrose Steps.
And this one's a classic too.
Infinite room of mothers, sisters and my gut.