Well I had to look up acrophobia thinking you were mishearing agoraphobia which means "abnormal fear of being helpless in a situation from which escape may be difficult or embarrassing that is characterized initially often by panic or anticipatory anxiety and finally by avoidance of open or public places". glad I got to learn a new word.
It can be extremely difficult to capture, from the top of a mountain, the grandeur one experiences. Usually when one adds figures to these kinds of lanscapes they are distant so we get a sense of scale. The subject is nestled nicely into the powerful part of the photo. and the exposure is perfect, but somehow neither the person nor the rugged terrain seem to carry the photo. Doubt it would make a big difference here, but when faced with photos where the colors don't add much, you might consider trying B&W.
I wish the colors were more vivid. The sky and the mountains are nice but the figure might have more punch if he were in high focus and had more coloration that didn't blend into the background.
Ohmygoodness! This is an awesome photo!!! Such a wonderful sky to compliment your picture. I wonder if you hiked all the way up there? Or if there was a road. VERY impressive if it was a hike.
Excellent concept, well designed image. Lighting is a little off for me. Looks like a relatively low res image that works against it. Otherwise, I like.