Fantastic work - this is easily the most fantastic technical display of pre-rendered 3D that I've ever seen.
If it's possible to share (and any of the artists ever read this), I would love to know if the dynamic lighting was created by using height maps/z-depth renders of the 3D versions of the assets, and then storing them along with the tiles. If you can't say, I understand, but lighting for 2D games has always been a pretty terrible experience for me, and I've love to have at least a hint that my guess is headed in the right direction
I can't wait see how this looks when you have this in a level full of clearly overlapping tiles, like your dungeon from earlier.
Really awesome - keep it up!