I did not look at your pictures. I don't need to. I just listen to your words and hear your heart.
Sometimes kids make fun of other kids because they are envious, jealous, different... There is never a good reason, and most of the time it is fed by their insecurity or lacking in something you have that they want. Sometimes it is because it is done to them so they find a target that is weak and pass along the bad treatment.
First thing, you cannot show your emotion by crying at school. As soon as you show this weakness than you are telling these people who really don't care about you that you care about them and what they think. Problem is you've already gone here. So how to fix this...
Well, fixing it this year may not happen, but you can start changing. First try to avoid, to the best of your ability, being in the same place with this group of girls. Change your route and your timing. Talk with the administration and see if you can get your locker moved to a completely different location.
Secondly, when you do run into them, start saying "hi and smiling". Then just keep on walking. You'll here laughter and whispering, but ask yourself that if they really mattered why aren't you there laughing with them. Because they don't matter. They are gnats on the windshield of your life.
Third, get yourself involved with activities at school that boost you up emotionally, support you, and make you feel good about yourself. Whether it is after school or before school, you need to get associated with kids you can relate to so these gnats move further down the ladder of importance.
Finally, come to school next year with the attitude that regardless of what they say it really doesn't matter. I have my friends and I am not going to let them get to me.
I was teased through my childhood until I found my niche of friends in high school. For me things got so much better. I never had a lot of friends but the ones I did have are still there, and I am nearly 42. Does that mean I didn't get picked on or teased? No. It still happened, too much, but my friends helped me to feel important and better.
I now watch my son's go through similar situations. My eldest is short (very short) for his age and gets bullied a lot. He gets through his days by knowing who is his friend and where to find them. My 7 year old is growing his (yes HIS) hair out for Locks for Love and gets teased about looking like a girl. He nearly cut his hair too soon, wasting the last 2 years, but then realized he really wanted to help another child so pushed (emotionally) these teasers away.
You are not alone in this life, and have a lot of empathy as well as love.
Hang in there kiddo. It will get better.