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Genuinely high quality stuff, but I can't seem to wrap my head around how to get NPCs to do these animations as fluidly as you have them in the GIFs.

Any tips? 
(I've been searching everywhere, haha)

Really depends on how you do animation in your engine, I guess. IIRC the gifs were actually recorded from RPGMaker, where I made the animations using custom "move routes" with specific wait time commands.
Thank you!