Overall, looking back now, this release focused too much on designing into the texture set/theme while not making the necessary compromises in visuals to allow good gameplay. It suffered from not spending enough, or indeed any, time in a blocked out basic layout that could be iterated over to produce something enjoyable to play. Too many tight corridors, complex but not interesting interconnectivity, and the open area is just too large and flat.
I have some ideas now for how this might be remixed into a level with stronger gameplay, and the map file is still available, so perhaps one day.
Edited 52 seconds after the original posting.
Maps take inspiration from other maps all the time in so many different ways. Cliches, tropes, recurring concepts, etc. exist because they're tried, true, and tested and just because one map started the trend doesn't necessarily mean that maps borrowing those ideas are remakes, unless the layout is identical to the original (scaling differences notwithstanding).