Hello there.
I really liked that character so I did an extended version with a few more states and animations:https://opengameart.org/content/bit-era-game-character-extended

I also adapted the spritesheet to match GB Studio restrictions:
https://opengameart.org/content/bit-era-game-character-extended-gb-studi...

Everything has been released under CC0 licence!

Enjoy!