Hello! So sorry for the 6 month delay... But wanted to say thanks for the kind words anyway :)
I guess it won't help you right now but just in case, about the VFX, they are fully done in Unity via the in-engine VFX system (I watch some tutorials to learn the basics). So nothing fancy! Then I just look very precisely at the VFX in Automata (frame by frame) and tried to reproduce as best as I can.