generate character images in various settings for use on website

I am looking for a freelancer to generate 12 realistic character images for a website to promote a script for a musical. In addition to the 12 characters, I need 15 images with any number of these characters interacting with one another. I will provide a reference photo to use as a basis for each character and a detailed description of each scene. The scenes all have the same background but the interaction of the characters vary. There is a heavy emphasis on facial expression, and in most of the scenes, one or more of the characters will be singing. Speed and accuracy are very important for this project, and I'm excited to work with a freelancer who is up to the challenge.
Synopsis for the musical including character and scene decriptions below.

There are 12 characters. I need individual full body images of all 12. I also need 15 additional images with two or more of them interacting.