Maybe it’s framerate? I mean, I can’t tell that Shamshel’s leg-thingies are CGI when they’re paused, it’s mainly that they move much more fluidly from position to position than you really get with traditional animation. So maybe when the fortifications extend, they haven’t corrected the extension to match the very, very slight choppiness of traditional animation and that’s what I’m picking up on.

Also, I totally need to become the kind of nerd that can name every Angel from memory I FUCKING LOVE THIS SHOW OKAY