What amazing colors you have captured! I think I would be tempted to crop this picture a little bit. For instance, on the right there is a structure that intersects the cloud formation above... sort of looks like a giant tree and detracts from your awesome photo. I might shave some off the top of the photo as well. But enough critiquing! Something else I really love about this photo: the diagonal slant of light. It gives motion to a still scene and adds so much visual interest.
This is the kind of sky painters and photographers dream of. As a painting, hanging on the wall with recessed lighting shining just so on it, it would look like it was glowing and smouldering upon the horizon still.