Rate this pic of me and my sister...

I really got depressed after posting it on instagram. I basically started hating instagram. People want only models on there. Sorry that I’m 18 looking like a 10 year old, liking to post pictures with my family members instead of alone or with friends.

So here’s the pic. I’m the girl on the right and the girl on the left is my sister (15).

What do you think of it? Is it weird?