This is Kanon (or "Canon" in JP) from Monster Hunter anime God Eater series.

I liked her careless, reckless personality in Burst; but it then got toned down in Resurrection...

Her base prompt:

ge-k4n0n, pink hair, blue eyes, short hair, braid,

Her outfit:

sleeveless dress, green dress, bare shoulders, capri pants, boots, zipper,

Her God Arc (weapon):

holding huge cannon,