Very strong outing! Love the atmosphere, the creatures, and the sprinkling of Warden advice throughout! The layout is clean and effective and the objective is clear for PCs. I'd have a very easy time running this!
I would say my only real qualm here is that the map is pretty linear - I don't know where the players would get a chance to make any meaningful diversions from the set path, and that can be tough to work around! I feel like a split path from the temple that either goes to the base camp or the worksite, and then converge later, would inject even just a little bit of a variance in path choice. One or two hidden passages or secret cubbies would get it to a place where the exploration feels more balanced to me.
Super solveable though and I like everything that's here on the whole! Really excellent execution across the board. Good stuff!