1. Very nice; this sis my personal favorite type of subject. I like the composition an the effect you've acheived here. I would suggest a little bit of burning on the bright area in the upper, RH corner, and some light dodging in the upper, middle area to reduce the dynamic range and the eye-grabbing light and dark areas. For some reason though, this image doesn't seem 100% sharp, but at f22, it should have been. Was this shot from a tripod?
2. Potential, but I think you just missed. The exposure is just too extreme here. This is a tough shot, but there are a couple of ways you could have produced a much stronger image. One, by shooting several images at varying exposure for an HDR image, or two, by using a graduated neutral density filter to reduce the brightness of the sky and allow increased exposure of the lower area. In this case, fiven the shape of the clouds, I think HDR might have been the way to go.
I was having a hard time finding a good place to set up, I I was out on a rock that was about 2' square, squatting with with the tripod at lowest holding it, while a storm was blowing in, and my kids were yelling at me that we needed to start running!
It was quite a bit better then my first attempt a few weeks ago, and my next will be even better!
Thanks for all the comments, you are all appreciated!