I'm assuming you're PSing this to convert to B&W and I know nada about PS. So this suggestion may not mean anything, but... if you apply a "red filter" effect you get the amazing contrast in the sky (because red darkens the sky) but lose the angel on the silo (red filter lightens the wording). How would a "yellow filter" effect work on this shot? You would still get a darkening of the sky against the white clouds but also a slight darkening of the red Angel also.
In other words, you should be able to enhance the sky and also the Angel to come up with a "killer" B&W image.