Sensational sky, but that's about all. A feeling of tilt to the horizon, whether real or imagined, and at best an indistinctness of foreground doesn't help with the challenge thing - there may well be extraordinaryily deep dof, but you haven't really shown it. I would personally have tried to lighten some of the sky away from the sun - you already have the contrast with the brighter part, and the extreme top of frame seems to serve no useful purpose compositionally.
gorgeous sky, wonderful colours, lots of drama... the structure on the right is a bit distracting, and unbalances the horizon a little bit. the deep depth of field isn't completely apparent either, i'm afraid. but still, striking image. 6.
It's a beautiful sunset with a perfect sky and ploeasing colors. I'd remove most of the bottom silhouette as that vast black area overpowers the sky. NOt a terrific example of deep DoF without something closer and in focus.
Cool light and colors...seems a bit dark...I don't know if that shape in the forground adds to this...
Really neat how the light seems to burst out of the clouds.
Cool photo.