Found the artist who made these paintings, Kim Noble. She has DID and each personality is a different artist, totally different styles.
The disturbing paintings we’ve seen here are by Ria. The main personality said she has no recollection of any abuse in her past, but that Ria clearly might.
VICE did a video on her. She talks about Ria and shows her paintings starting at 3:38
https://video.vice.com/en_us/video/vice-kim-noble-the-artist-with-multiple-personalities/5a14137b177dd46fc1240663