We have left no stones unturned to make sure that all art/sound/music etc assets are:
Legally purchased/commissioned with full usage rights.
Used with permission from the actual creators in case of public domain.
But things like this could get very complicated due to a large number of parties involved. If you feel we have used somthing in our game which violates your copyrights, let us know (with proof) and we will do the needful.