Tabitha Smith aka Boom Boom (or Boomer, or Meltdown) from Marvel Comics.

Triggers:

Latest New Mutants costume: boomboom, blonde hair, ponytail, blue eyes, sunglasses, eyewear on head, crop top, midriff, pants, trench coat,

X-Terminators: boomboom, blonde hair, twintails, blue eyes, heart-shaped eyewear, dress, cleavage, heart print,

For whatever reason, her eyes get distorted a lot when wearing sunglasses with either costume. I haven't found any negative prompts that help, so I might have to re-do this in the future to see if I can fix that.