For this lesson, I brainstorm an introduction with students. For low level students, I write the full introduction on the board minus important words (My name is ___________. I am ___ years old. etc.), for medium level students, I give a few examples but otherwise just write the main points on the board (Name, Age, etc.) and high level students, I just give the main points, or nothing at all.
I print off the pictures in the file (attached here) in color, laminate them and give each student one picture. I make sure each group of four has four different pictures. I have students then imagine an introduction for their picture and write that introduction. Then, they introduce their picture to their group. Depending on the class level, the other students can ask follow up questions about each picture. Then, the group chooses the most interesting / funniest picture and presents to the class.
NOTE: I'd recommend deleting the picture of Andre Kim as the kids actually know who he is and so they tend not to imagine an introduction but rather just try to remember information about him. Also, make sure you count the cards between each class as the boys in particular tend to steal the more appealing pictures.