Looks really great! My only advice would simply be with the photo, if it had a horizon point we could see instead of the road going off the top of the picture. I don't know if you take the photos yourself or not, If you don't, then there isn't much you can do
Very nice shading on Twilight once again, along with good cast shadowing.
Well, This is actually my first on-body shadow picture and I'm very happy that you like it! How did I do it? Just go to youtube and search for any Ponies IRL tutorial, there are many good ones out there.