Cool demos, they make me pleased with these levels because the gameplay turned out just like I wanted. Looks like my new "gameplay first, visuals second" approach kind of works. (before I would usually make an empty map without really considering the gameplay and then do the thing placement in like 30 minutes)
Creative and very tight for health on UV. I liked how the secrets in MAP02 were pretty tough to work out, but perfectly understandable when you'd got it (rather than just aimless wall-humping or anything like that) and the relatively diverse cast of monsters given the size of the maps was also welcome.
I have a hard time with difficulty settings myself, I usually wait until everything is done in my WAD... and maybe work on another WAD... before starting difficulty settings X) Glad you enjoyed the vid!