She's trash talkin' look at those ears ! She is making it clear that she's in charge and not happy at the moment. I have trained many mares with that look. She very well could be coming into heat and gets aggressive , some mares do . Another reason why I have always had geldings or stallions. She's a beautiful girl just making her position in the herd clear to all . Perhaps a little misunderstood. Great capture of this beauty.
My thanks to all who leave comments for my work and to those of you who like one enough to make it a favourite. To touch just one person that way makes each image worthwhile. . . . . . . . . .. . . . "The question is not what you look at, but what you see" ~ Marcel Proust