For the price of your art?
Well the ych's have been rather reasonable

Hi, I want to tell you that the prices are yours. You choose them. Now, if you want to consolidate yourself to a standard, you have to count on the time you will spend on the drawing... The drawing techniques you'll use... The complexity of a character too. A full body shaded can range from 30 to 60 euros in general... Plus it can be cheaper, or more expensive. Add the price of a background, or other elements (saliva, acids, internal views for the vore..)
Hope I helped you! I think you've a good draw style.

Headshot - ±20$
Halfbody - ±40$
Fullbody - ±60$

About comics. If you make simple detalization as you do at your last works (cell shading), a panel can cost 30-50$ 🤔