Seven seems to be giving Maiku a funny look. It was just a moment the camera caught in the action of them approaching each other, but it *is* kinda funny. 🙂
The pintos, though well-proportioned, are generally smaller than the other mustangs in Spring Creek Basin.
Spring Creek Basin Mustangs 
What are you doing here? FUNNY!
I think my Mom gave me a look like that once or twice! 🙂 I always wonder what these mustangs are thinking in these moments!