I go along with the comments left by the others, Susan, and I echo Joe's. If you enjoy the photos you take, if you're happy with them, that's the most important thing. Some of what you shoot will appeal to others, and then that's great. Don't get discouraged! Photography is a continuous learning experience.
For my part, I liked the snake the first time I saw it. However, that triangular brighter background patch adds nothing and I think the photo would benefit from being cloned out. If the eye was sharper that would be an improvement, too.
I like the landscapes, especially the middle one of the rocks, but that's perhaps because I'm a geologist
. It could use a boost to contrast, I think, and there's a dust speck up near the middle of the top edge which should be cloned out.
The reflection photo seems to me to have a slightly tilted "horizon" which I always find a bit bothersome when it happens. It's a beautiful setting and scene, but like Wombat says, it's not a lot different from so many others of its type. That might be one reason why it didn't make it to PEG.