Feedback:
I think your descriptions are great! I like the way you describe the setting and how it makes the observer feel with extreme detail. I was able to picture everything really well in my head. Moving forwards, I think what you should do is reassess what you're writing about. Maybe I misunderstood what you meant by "describing a moutain," but I feel that you spent too much time talking about the overall setting and how it made the observer feel instead of the actual mountain. I liked your description of the mountain being "a beast arisen from nowhere; its tip to be unseen" and I think you should continue this as you'll prevent yourself from drifting too far from the object of interest.