Dayoung Johansson aka Rocket Girl from the Image Comic of the same name.
Triggers: rocketgirl, 1girl, helmet, freckles, green eyes, bodysuit, jetpack
Remove helmet and add in brown hair, short hair for a look without the helmet. I couldn't get the bodysuit look without the harness and belt, but putting in harness, jetpack, and belt in the negative does help with that.