You can use it up and down too. 

If you want the character to *actually* show it's back or front, that's at least 2x as much work. 

It's 5$ for 20 characters, let's not be ungrateful/greedy

Wdym only works in one direction? If you are working on a game, you can just flip the sprite inside the engine.

Hi, I am loving your work. Do you have any yt guides you follow to learn pixelart? Would love to know how you learn