How to improve your photo
Of course, being able to wait for the "right light", "best clouds", and "monsters" is the ideal, it's not always possible. If you can't wait around and have to get a quick shot, make sure you do some exploring other than the first-impression-shot. You'll get more images from that location and may end up with one that is better than you first envisioned.
Adjust your exposure in situations like this (bracket). Overexpose and underexpose. A different exposure might emphasize a different element in your scene and you may be able to blend exposures later to broaden the impression of your experience (not necessarily HDR processing, but that is also an option under the right conditions). Here I mean blending a darker sky with a lighter foreground, perhaps.
Be aware of large blocks of very bright or very dark areas in your composition. These "blank" areas take up visual space and create visual "weight" in your composition, drawing the eye away from your intended subject. Sometimes, you might want these kinds of large, featureless areas but, most often, minimizing them will improve your composition.