The 3d effect of the cloak was almost completely accidental (at least I didn't think it would work so well). I tried using Unity's sprite skin package for the first time and set up three bones on the cloak all anchored at the top. I lerp the rotation of two bones at the side to the players x velocity plus a sine wave that matches the players steps. I think the way sprite skin warps the image plus the simplicity of the sprite plays a big part in the 3D illusion. I might make a thread on twitter about it at some point