A reflection on mortality and death as the passing from light into dark. The horses represent mortality as something wild,beyond our control. This is also illustrated by the old man who is reaching behind, towards the light.
I'm intrigued with these ideas you come up with and can translate to imagery - it's really quite a tricky thing to do effectively for art, so do keep up with it! (I notice this is a 2012 piece, so it will be interesting to see where you are now with your ideas.) There's some lovely detail worked in on those horses - I would say that the right front leg on the third horse does look rather awkward, as front-view, and of course horses, can be tricky to get down really well! The middle horse you've done a great job on - great pose and detail worked in with the shades and tones; it keeps things interesting that the horses are all in different poses as well. I think there's a really good composition here, it balances out well with the dark tree on the side, flowing into the greys largely on the lower part and then into the white sky.
Thank you for the well thought-out critique. I posted this drawing in 2012 when I first got a deviant art account but I drew it in 2009. This was actually one of my first attempts at drawing horses so some of the proportions probably are off. I used a 4 inch 3D horse figurine as the model.