Thanks Christopher,
Most of the counterpoint was done by ear, so that is probably why they only stuck to a few key notes, but I will focus on what have you assigned and perhaps we can tackle that later.
I am a little unsure about what you want from "broad" variations; I have the impression that you want me to develop specific parts of my theme into entirely different pieces. Correct me if I'm wrong, and I apologize for my lack of theory background (it makes it hard to understand what you want). Nonetheless, I will attempt three variations and submit them here, and you can tell me if I'm understanding you correctly. I'm also not sure how long you expect these variations to be, but since I will be writing a set of them I will try to keep them short; enough to flesh out (hopefully) what each piece is supposed to develop.