They are cool, especially the first shot*. Very nice. Also, it is comforting to know that I am not the only one that has a rain magnet installed somewhere in their car. Here are a couple of mine, late dusk, still some color in the sky. Along the line of yours, which is a great time of "day" to obtain these "moody" shots. Had to chop down the resolution to work on this site as the original file size is huge in both. Some detail loss & degradation, but you get the idea. Lighting is key in these kind of photographs. Wish I had more like them. Clay/Lexi
Edit: *Going with your second photo now as my favorite. Nice to see the cloud split at the fin to better show it off.