Picture gesture authentication

A picture signature password system is disclosed. The system may use a picture signature password to determine access to a computing device or service. A display screen may display a personalized digital image. A user input device may receive a user drawing set executed by a user over the personalized digital image, associating a user drawing set member with a 5 user position set; associating a library drawing set member with a library position set; determining the user drawing set member and the library drawing set member match in part if the user position set is within a position tolerance value of the library position set. A processor may authenticate access to the user session if the user drawing set matches a library drawing set associated with the user.