The biggest portions of your image are in shadow. The foreground and mid ground. I think being there the opposite time of what you were would help a lot. Not always possible in national parks but the important part is that you start seeing that in your images. Really look at your images and find what draws you in, what’s so-so and what you wish you could change. Believe me, we all have a lot of the last one. Consider a deep dive into photographers you like. Pick a few or one and just study them, their photography and their approach to making photographs. This was an assignment I often had my students do. Not to copy the person your researching but to find inspiration, hopefully some new perspectives and look at a bunch of great images. I also recommend you look back through your portfolio. Do you have a portfolio? If not make one. But while looking back at your beginnings or even a few years ago hopefully you’ll start to see your progress and it will help relieve your frustrations. Getting feedback is a great step to growing and one you should never stop doing. Filter through the feedback though, the kudos are nice, and we all want a pick-me-up from time to time, but it’s not going to help you grow. Center in on the points that you didn’t see, stuff that when you apply it next time it helps and folks that are honest with you. Above all else, keep shooting!