Running version 0.16PublicWindows and have all figurines except Mia & Nia (the last two on the second row). Have these been implemented yet? I also don't seem to have encountered them anywhere.

They can be found in the river room after you save Sandy. 

after getting Mia, just grind the exact same area, Nia will be there

Nice to find it, could you plase switch the hint then in the container on the shadow ^^. I grinded like 100+ mobs before looking it up. Still thank you and great game! ^^