The vertical orientation shot is interesting to me, because it combines the grasses in the foreground with the tree as main focal point in an efficient way.
The horizontal extreme panorama has a good number of wonderful characteristics : the diversity of colours is interesting; the light creating rays through dramatic clouds is an eternal winner, etc.
But I feel like the foreground lets it down just a bit. The nearest foreground is just a bit plain and boring.
If this was not that wide a shot, foreground interesting could easily be added by placing yourself near any kind of feature in the landscape (a rock, a small bush, etc). But of course, because the shot is wider, that technique is not so obviously available. We are left with a rather monotonous stretch of dry weeds.
Cropping away a bit of that is not an elegant solution because it would make the horizontal slenderness of the frame even more slender.
I don't see an easy solution.

