Photoshop Brushes Creation from Rock Photos

I'm in need of a professional who can convert my realistic rock photographs into Photoshop brushes. The primary purpose of this project is to package these brushes for resale on Etsy, catering to other photographers looking for such resources. As I value timeline efficacy, I require the entire project be competed within the next month. Ideal candidates will have experience with Photoshop, photography, and preferably have prior work on Etsy. Solid understanding of realistic design style is also beneficial.