Maud Rocks

The left leg of maud is a bit too small. Also I know its a simple background but it isn't very clear what it is supposed to be of. I also cannot tell what the picture is portraying as I know its her with a rock but I don't know if she's moving it, catching it or throwing it. On a positive note it is very original with how the front hoof is bigger due to perspective. Nothing is wrong with the art style and the shading is great. The only downside is what is going on in the art itself.