Wow your plants downstairs look great.
Your upstairs plants look a lot like mine in the garage...I am sure they will come back just fine.
I figure the plants whose leaves have all given up the ghost no longer need to be watered, I am considering them dormant at this point. The ones that have leaves have been getting foliar mist every few days. Based on my experience last year I am a bit afraid of over watering the potting mix and would rather err on the side of dryness.
Keep up the inspiring work, good luck with the rest of winter and please keep us posted.