Is Sum Yung Guy who he says he is?

I have two younger brothers that live with my mom, two sisters one lives with her mom and the other lives with her mom, one step sister that lives with me one step sister that lives somwhere in middle USA, one step brother that lives in central cali, and three step sisters that live in the same area as me. My dad looks like me but he has grey hair and slightly darker skin. The first two pics were when I didnt have a job and didnt have to shave the third pic was when I was freshly shaven and the way the picture was taken, and the bad lighting made me look younger.