Of the first three images, I prefer image 1, the “Centered best”. It provides a symmetrical composition which feels pleasing. Consider cropping the bottom just a bit, bring the horizon to vertical center. Also, consider cropping the right side to bring the intersection (the "V") of the foreground mountains to the horizontal center.

I especially like image 5, the peek-a-boo view of the mountain through the wooden structure. Nice job of framing the background mountain while still presenting foreground details of the old mining structure. It gives you a sense of place, not just framing the mountain. While you’ve framed the distant mountain, the subject is really the structural remnants of the old mine.

Image 7 is another nice effort framing the mountain. However, unlike image 5, there is not much foreground providing a sense of place as in image 5. This framing brings immediate attention to the mountain while the foreground frame defines the time of year. This is another good presentation of framing your subject.

The balance of the images aren’t of real interest to me as they appear like ordinary travel photos that were only use to preserve memories for the photographer.

Mike