Price and Critique My Pixel

[The Peanut Butter Fish]

Spoiler: It's here

I made this without any tutorials or bases. I'm looking to better my pixel art and would like some tips. It's one of my first pixels in a long while. I would also like to know if it might be worth anything (TBT wise). I'm not sure what to say other than that.

 

[Money Hunter]

its cute but you need to work on the jagged lines