Here is an example of the Gwent artwork when moving the card around: https://imgur.com/zqaHo5o
What is the most likely way this has been implemented? Is it a 3D model or is it just many layers of 2D art? But then, what about the jiggling?
The character seems to look correct from all perspectives, with body parts closer to the camera properly occluding the parts behind them. This makes me think it is simply a 3D model but it looks incredibly 2D as well.