If you loved Rhea Gall Force, try Armitage: Dual Matrix
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Katsuhito Akiyama, and they both carry the neon soaked mood tag, and they sit in Action / Adventure / Animation / Science Fiction territory. If that's the register that drew you to Rhea Gall Force, the second film will land in a comparable space — through a different lens.
neon soaked
What Armitage: Dual Matrix is
Mars suburb. Morning light. A child's laugh. Armitage and Sylibus, incognito, raising a daughter, trying to stay small. Earthside, androids run amok, blowing holes in the world. Serial OVA revisitation adds little.

