I had this same problem in a dynasty once. I was able to just take two separate pictures of home decor. I think I googled it and they said to take a picture of a sculpture one time and then take a picture of several items from the decor section of buy mode for the other one. This exact issue came with the installation of Ambitions. You just need to photograph any sculpture that has been made with the sculpting station. (info found again with a quick google)