Alright, allow me to address the points you made in the interest check one by one

1. Change it to Caucasian, easy enough

2. For whatever reason, images are a bitch on this site for me. Coding issues, perhaps

3. Alright, a little adjustment here to fit with your lore. She was psychic, and one of the ghosts was an old Native shaman. He taught her what he knew, and she was able to intuitively fill in a little more around the edges. There was a book, too, that she managed to find in Boston, that taught her more about necromancy

4. First, she put her soul in the crystal while she was alive. At this point, her physical body was dead. She used necromancy to manipulate her corpse into grabbing the knife, performing the "surgery", and placing the crystal into her body to restart it.

Hope that helps.