Good idea - I have done these myself. I felt more detail in the mountains was needed so did a Shadow/Highlights adjustment. Also cropped as suggested. I like the crop but am OK with the original version too.
Hi Bob,
I like Robert's repost but you could also go the other way.....and make the base darker/almost silhouette and that would probably work too. I think the effect was pretty cool although I am betting I may have preferred a sharper cloud version. I also like the crop, but would tone down the brighter cloud near frame edge if you go in that direction. I like that you thought of using the filter in a different way too!