You know, I don't normally like humanized pony characters, but this... I feel like you've captured the same sort of emotion as the scene from GITS on which that whole fight was based. Maybe a little bit more than that. Great job.
Love the look of her mechanical parts in this piece. They look suitably artificial, yet stil have an organic motion to them. The atmosphere is also really well done and catches the grim mood of the chapter
They are the same, GunMu (the english gun and japanese Mu for Spirit) was renamed Battle Angel Alita for US and European sale, renaming the main heroine from Gally to Alita, cause the thought it sounds better. Itīs cyberpunk, and one of the most famous works, after Ghost in the shell.