Bandana Bettie's Final Cut Ltd

My wife and I hired Bandana Betties to do painting in our home. She started June 28. We ended our association with this company July 21. My wife asked for two pieces, that this company still has, to be returned to us, both on her Facebook site and in messenger. The owners response is she hasn’t been in this direction. It’s now August. We started with this company June 28, and ended with them July 21. This is not a reasonable length of time to take to return property that is NOT YOURS! The owner has made zero effort to contact us about returning these two pieces or to actually return them. At what point in time is this now considered theft? Not a company I would refer given how unprofessional the owner has proven herself.