hmm... I guess what I need to know is how is this result different from how you expected it to look? I can Guess, but it would only be a guess, and may completely miss the mark. You "wanted so much to express the joy and awe you felt looking up at that sky." By making the image rather dark, it seems brooding and dramatic. Perhaps awesome, but I'd think not very joyful? Just lightening it up a bit cheers up the mood. Some would argue now that I've blowen out the highlights; but so what? [I still haven't made it a great work of art, but maybe you see the direction?] Course, you could go in the other direction, and make it darker and broodier? Sky pictures are kind of neat, but unless framed by a really interesting foreground, or having something interesting going on [like maybe a vulture perching on the bird house], it's really sort of like you have to be there in order to feel the emotion. The real value here is that you are learning very completely how to use your photography tools. Sky is difficult. By practicing like this you'll be ready when you see the whole scene come together.