Illustration from Chapter 33 of The Sirens Remorse, an alternate universe where the Dazzlings make a comeback after being defeated by the Rainbooms with the help of exiles stranded in the human world.
Main Story: https://www.fimfiction.net/story/328044/the-sirens-remorse
Sequel: https://www.fimfiction.net/story/366445/the-sirens-remorse-resurgence-of-the-dazzlings