Really great art style and really fun application of the theme! The mood board especially gives the impression that y’all have already dedicated a lot of thought to this concept. One thing that does occur to me to ask, though, is if y’all have thought about looking at city builders as reference, rather than tower defense games. In particular, I think frostpunk would be a very worthy comparison thematically, although against the storm might be a better comp mechanically. In any case, this seems like it is primed to be a solid game with a very coherent identity!