My Tiny Island.
 Animated and made by myself using Aseprite and Clip Studio as a world building example.
These are my building blocks. I make the ground base of each asset in Aseprite then animate them in Clip Studio adding details or correcting frames sizes or pixels.
The tiny birds shown below are using just a few pixels, even so you can easily see these blue finches going about their business. However it took many frames to get them just right. Indicated by the sprite sheet below.
My Tiny World
Published:

My Tiny World

Published: