You know, going back to see this picture after I know that Annie is both afraid of the dark AND flying, her body language really hits a lot harder.
 
Trying to smile, but absolutely terrified.
 
-Lumino

I find this hilarious.

OP, you forgot the description. It provided the context:
 
Star: W-woah, I’m a unicorn now?
 
Annie: Yeah, it’s just a little spell I’ve been working on.
 
Star: But… Why?
 
Annie: Well, it’s your birthday, and you’re always talking about how you wanna connect with your mom better so… yeah! Just seemed like a cool, temporary present.
 
Star: Wow, I don’t know what to say. Thanks Anthea! Annie? Are you okay? You’re kinda staring off into space…
 
Annie: I-I’m fine hehe, don’t worry about me. Well, I think I’m gonna go home now, I’m feeling a bit tired laughs nervously
 
Star: O-okay. Well hey, now that you have wings maybe you can go fly around with your mom or…
 
Annie: giggles Oh ho no, I can’t stand flying. I have zero depth perception up there and I get all dizzy. Don’t worry about me though, you just enjoy doing some magic with Princess Twilight, ‘kay? starts hyperventilating Alright, I’m gonna go now. Happy Birthday! C’mon T let’s go. gets up and runs toward the door but crashes into the wall
 
Star: Oh! Annie, are you….
 
Annie: Aha-ha-ha. There’s a wall there~. I-I’m fine! Bye, Star!
 
Star: B-bye. turns to T Is she okay?
 
T: Yeah. Turns out that her magic has a lot do with how she can see colors and stuff. Without her magic it’s just… dark.
 
Star: Ah! But she’s terrified of the dark! Wait, bring her back! She can have her magic, I feel bad.
 
T: Star, Star, it’s fine. You have her magic now and you don’t know the spell. You guys will be back to normal when you wake up in the morning. Like she said, just enjoy it. She’ll be alright. I’m gonna be by her side all day so there’s no need to worry.
 
Star: Okay. As long as you’re with her I guess. You should probably get to it. Looks like she’s going insane out there. points outside
 
Annie: running in circles Dark! So, so dark!
 
T: Eheh, probably. See ya later, Starburst!
 

 
That was fun hahaha. Star and Annie have so much story potential

That’s so sweet of Annie!

Yep, she’s Twilight’s student alright.

Them crazy genetics.