Looking for Touhou Lost Word missing files

[Alice Margatroid Kaikidan]

I finally made it through the main story up to Chapter 4, Part 2 and completed Hifuu Lost Word, but after watching the story, I extracted an image of Keine in her Hakutaku state that I had excavated, and found a black shadow-like thing. If you know how to remove it, please let me know.
I also added new sprites for Kawashiro Nitori, who appeared in a limited-time event, and Kochiya Sanae, who appeared in what appears to be a new event, but all of them have black shadows on the cheeks of their facial expressions.