Really like the industrial feel of the Foundry area - the Underrail art style fits very well. Balancing changes are well received too.
Regarding the Last Stand ability, I feel that for more of "last stand" feel it should be more based on offensive rather than defensive abilities. For example, take no damage once at 1HP for two turns, but you will die unless you kill an enemy in that time.
It would add some additional urgency to the situation, while still offering a of death-defying desperate final chance.