This is only a proof of concept type of thing to give you a possible direction to go in.
It would need a lot more work and finessing and for this particular set of images I am not sure the Parallax works well with the foreground gunslinger in comparison with the rio example.
I have not set any limits to the movement distances and at the last minute added the gun arms and movement ( so don’t laugh )
The example uses JS and the cursor position.
para.hypetemplate.zip (8MB)