There's nothing average about a girl who can stand on the wall with her body parallel to the ground. Or does your picture need to be rotated 90°?
"Average" isn't in our appearance as much as it's in our personality. Just give yourself time. You look nice, you have a lovely smile, and you have the promise that you'll only get better as time passes. But you also have the look of somebody who is a little self-conscious. That's the killer. I know it's easier to say than to do, but forget about what other people think: Let go! Laugh. Have fun. You'll find there's nothing very ordinary about you at all.