Being a fan of "artistic changes" to the image that involve some to heavy post-processing to an image, my opinion is to respect any artistic impression on a photo, as long as it does not have the claim to be real or reportage. Your work is no exception, and I must say I like the outcome very much!
I've often been in the situation where I loved the edited versions of the images more, even when they were no "original photographies" anymore. I think it's up to the artist what to change or "enhance" in their photos, as long as they go their own way. It still is both art and photography to me, but I accept that for some it is not.

well... 100 words reached - that be it! Oh wait.. the critique..

My first look at the thumb the fiery clouds reminded me of that particular scene in Lord of the Rings that gives you the first look to what Mordor will look like always throughout the movie (especially at the end of the 2nd part) - If you hate that movie, sorry - but bear with me
There's something in those contrast of the dynamic sky that makes it hard to focus on the top part of the image and (at least in me) sparks a mixture of disturbance and concern.

I really like how the HDR has turned out, and not being a fan of those overloaded tone-mapping images and those things often thought of when thinking about HDR i must say that you've used it very well!

The only change I would have applied there is to darken the foreground yet a bit (as i think it is still too bright and is competing with the amazing storm-clouds) to focus the viewers attention totally on the mountains.

To justify the 3 stars on Originality: I think this is extremely hard to judge, and I dont like rating other users work, but except for the gorgeous effect with the clouds, i think the composition is not that special or would be a overwhelming if used itself!

Overall, this is a very pleasing image and I like it very much!