Thank you so much for the lovely praise, and for the absolutely fair wishes!
Regarding your wishes: It mainly boils down to prioritising what content made it into the very tight (in my mind) 8 page limit. I was quite hard pressed for space, and had already cut it down into what I found to be the minimum scale of this dungeon. So between Areas, Art, and Delve Shifts or Hazards, the latter unfortunately had to go (in my mind).
When I GM I personally always tailor the adventures to fit what we’re playing, and what lvl the characters are – so in my head it’s quite natural to tinker a bit with pre-written adventures, maybe add a bit of direct damage here, a bigger damage die there etc.
I realise not everyone plays like that, but I find great joy in designing an adventure that can be played at any level – it’s just a matter of very minute tinkering from the GM. (That being said, baking some direct damage directly into the adventure definitely wouldn’t have hurt.)
The Sun/moon/fire symbols are meant to be visual indicators/reminders as to what kind of light is present in the room. Moon = darkness. Fire = glow/torchlight. Sun = bright light/daylight.
I’m really happy that you like the weird and wacky characters in the adventure – and I’m quite curious about how people will interact with the Failed Servants such as the human–mouthed–flute!