Good idea. A nice touch is the motion blur on the right tower (only it should be on the other side).

Nice, but the reflections could use a little work. Maybe a bit darker, and, if you look at where the cloud intersects the tower - wouldn't it intersect it at the same place in the reflection?

if you were to take the end of the black section on the right, and make the line moving diagonally left, it would look more like a hole, rather than now it looks a little flat

very good idea

I'm a big fan of this kind of work! Nice idea and execution, author!

The blood would be totally absorbed by the fur and it wouldn't slide on it as if it was our skin. Good luck

There are some strange white spots above the dog image. i think you should delete them.

you need delete those white spots and blood if you don't know how to do it