I have figured out how to import images as 2D planes, so now I can render these images directly from Blender. The first image is a render taken straight from there, while the 2nd is a screencap of how this has been set up.
The lighting seems off, but if I can't fix it by the 20th, I will likely do last minute edits on Clip Studio Paint. Tomorrow I will get the next sketch for this set started. I have at least 3 pictures planned for this.