Yes, looking good so far.

As was mentioned it is a nice use of colors. I think that maybe you could add a bit more deep blue to the clouds though instead of having them just grey and black. If you notice the red-orange of the setting sun is really what pulls this together and makes it work. Try putting your thumb over the sun here and notice just how flat things become without it, but when you see the picture with that sun it becomes much more dynamic. I think that however you decide to finish this you should definately protect that sun right there because it's adding a lot of visual interest here.