Ooh, maybe your best yet!
This is a great artpiece because it's simply so psychotic! It perfectly fits what would go through the mind of a Batman villian. Too bad I only saw "The Dark Knight" where he got defeated rather easily there. I still like the fingers that just really strut out and look like weapons in themselves. This seems to be the most colorful of all the drawings you have made. There's a much better emphasis on shading with the dark lines on his clothing.
I only now notice the bat signal near the moon (which actually seems a bit unnecessary now that I think about it). The scariest part is how distorted his face is. It looks like the thing's freaking melting! It's a good represenation of the madness that lurks in his mind. I rarely saw Scarecrow art before, so it's great to be introduced to it.