Fantasy Comic Sketches for Adults

I'm looking for an artist to create 3 semi-detailed busts and 1 full-body semi-detailed piece for a homebrew D&D class that I'm publishing for free, basically. I've had the document lying around for personal use for close to two years. The issue: I used AI images for my rough draft originally. This was before the major discourse surrounding AI art. I don't use AI art for projects at this point. I'm looking to rectify this before publishing and need an idea of what it would cost me. For the full-body, I had an ideal for what my initial ideal for a character would look like. I'd like to make a full-body representation of that idea as the primary example art at the start of the doc.

For the three busts, those will represent the three subclasses for the class with a bit more simplistic coloring just to give a reference for what you might think of for those particular subclasses.