Okay, I'll bite. First of all, this looks great. I get you are just using 2 frames, which is why I think you did a very good job on these.
Seems to me you used the right key frames for the mechanisms, though the windmill needs more frames to be more readable.
I suppose it is a weatherquern you were going for? The sprite does some justice showing it, though I think they have sail cloth applied to them when they are in use, otherwise the blades don't catch the wind. Also, horizontal transfer of power for windmills are a gameplay change right?
Tree shadows are a great addition. Im wondering if they are supposed to overlap. keeping it in would somehow make thick forests much darker, I'm pretty sure I like that. Really cool to see all of this coming together. As for stockpiles, I played around with it some more by myself, and I like the flat ground borders better than the rods and strings. It looks better when inside, though the poles and ropes looks way better outside. It is of no big matter to me since I will mostly port and play with my own tileset exclusively haha.
Edit: I also like dwarven things being made mostly out of stone, though the game doesn't really use any way do discern what stockpile tiles are made of
"There are a ton of tiles to reference, and the edges and layering are a little tricky."I'm guessing the tiles are referenced the same way the trees and minetracks are referenced in d_init right now? not sure though, The system is probably way expandedd upon.
Other than that, I'm not going to give any further suggestions, this seems to be running along nicely.
I'll stand by if you guys need a geologist consultant when making the minerals and walls.