From the perspective of someone who absolutely adores the mood and style and gameplay, I see the Ligne Claire work you're doing and it's absolutely beautiful. The art in CE2 is beautiful.
If I may offer an entitled little little nugget of feedback: As I experience it, the "breathing" style of animation feels a little jarring. Maybe when coupled with Ligne Claire especially. I'm referring to the "flexing" cutout animation (time-interpolated affine transformation / skeleton deformation of a set of shapes per entity). I'd like to request an in-game option to disable it :) Or actually, ideally to slow entity motion down to subliminal speed while maintaining motion speed of lights. Ligne Claire adventures are a big part of my nostalgia and my unconscious expectation would be of a more frozen, nostalgic, disconnected, dreamlike life on screen.
Mostly I feel shame to be saying this though and feel like there's no way to say this and also deliver the amazing amount of respect and love for your work.
Did you see our comparison with Renowned Explorers by the way? :)