Hello everyone I have an art shop but wad curious if my process are too high.. I'm not going to state the amount so that I get an idea of what you think is fair,but I would love opinions.

My DA:
https://www.deviantart.com/darkwater18/gallery/

What would you buy my art at?
Shaded lineart piece?
Flat piece lineart?
Ref sheets?
Simple sketch?

Thank you for taking the time to read and I hope you have a lovely day :D