Hi everyone! I am getting into game dev, but coming from an artist perspective that is proving to have it's challenges, which will result in questions for a later time! However, on the flip side, I am doing quite a bit in terms of art asset creation, and I thought I could potentially sell some of the assets I create for 2D games.

That being said, I am wanting to ask what people more familiar with game dev look for in such assets. While I have been making things on a 16x16 pixel scale to challenge myself and get familiar with the medium, I am wondering if 32x32 is preferred by most devs. Also, while creating tile sheets, I am not sure if creating a character to accompany the tile sheet is also a must.

I understand this question is mostly subjective, but any suggestions (As well as other advice for a new creative here) would be much appreciated!