A little backstory: this is my first map, started exactly 20 years ago. It was dormant on an old HDD and I finally decided to finish it. The basic layout and flow of the level were pretty much done already, and some areas were even almost fully finished. I was actually surprised with what I'd done at the time without much experience or references.
I tried to make it as "modern" as I could, while respecting most of the original design ideas I had 2 decades ago, and I'm pretty satisfied with the result.