Interesting concept, I'll suggest to finish the round when all the enemies are captured, maybe with an alert like "Well done, let roll the dices again" or it can be better (under my perception), and maybe the alert can say, "Let see if you can deal with the next level", or kind of warning messages with some info about the levels incoming, giving the player some approaches or not (Darkest Dungeons fan) "Sorry for my bad english". Nice game, from Uruguay (another game developer) :)
BTW: I have only played a few levels.