Sorry for the delayed response :sweat: .
Did u make them using Spine (if yes how did you do it?
Honestly, our animator made background with Unity3D
If you mean the FX of background, that's about FX artist's work, Arseniey draw the Bckground, then FX artist made that with AE.
And what's your opinion of this clip???thx a lot π
https://twitter.com/sollysoft/status/842596071062683673