Interesting build and a nice demonstration of the utility of the new crouch mechanics to hidden access.

My inclination would have been to waterlog the campfire rather than expending a water bottle as a key [cheap but more costly than the alternative], which would also avoid having a bunch of water bottles about [which might tend to make someone searching for hidden room curious].
(Placing a brewing rig nearby would be an alternative that would 'hide' the waterbottles in plain site.)


Similarly, if one kept a fire aspect blade around (possibly next to an animal pen :^) ), one could avoid provoking interest with the flint & steel….