It is commonly said that Bhoodevi Andal's independent picture or photo should not be kept and worshipped in the house. It is not a opinion based. Are there any puranical evidences pertaining to this?
Andal is an actual human being, so she cannot be included in Puranas. Plus her time was thousands of years after the time of Puranas.
A picture of Andal is kept in every Sri Vaishnava home, much in the way Meenakshi is kept in the home of Saivans.