I really like the setting here, the kind of post apoloclyptic city ruins theme is very cool. I wasn't 100% sure how the mechanics worked, but think it's fun to build and equip my party with the guardian tokens even if I wasn't sure exactly what was happening.
One thing I really liked as well is the movement, the ability to go down drops with that smooth tween was really satisfying and not something I've seen a lot in these types of games. In general moving around felt really responsive and smooth, and the ability to move onto different types of terrain and not be constrained to a very obvious grid made the exploration more interesting (Especially that last bit moving out onto the wall and dropping down).
I did end up completing the bestiary, it was a nice touch to have the bunny and the flying monster a bit out of the way and requiring a kind of diagetic inventory thing to get as opposed to just running over them.
Really nice entry, visually striking with some cool concepts that I think would make a really fun game if you decide to take it further. I'm a sucker for the whole nature has retaken the city post apocalypse vibe.
Great job!