I have to agree with what Wolfsong said. First, you do have a love for nature and good eye for photography and that will get you quite far into improving your photos. Shooting in tough weather is a challenge, but as Wolfsong said, you can get some pretty good results.
Also, I think that post-processing your shots could help a lot, even minimal post-processing can get a picture to look a lot better.
I agree with Wolfsong when he says that any shot is better than no shot. Also, I admit I have had a lot of fun having encounters with wildlife and that even if many times my pictures were not the best (that's why I don't post a lot, also because I spend a lot of time post-processing my shots, but that's another story), most of the times when I have those ugly shots, it still reminds me of that awesome experience when shooting, and that's the main reason that I do wildlife photography, not because of the results, my results are crap, but because of the experience I have when shooting.
I'd like to tell you my rule for photography, even if it might sound like a cliché: Have fun. That's the point of it, not to get an amazing shot (although that is great

), but to enjoy it, and you do seem to enjoy nature and taking photos of it, and that's awesome.
Also, I'd recommend you listen to Wolfsong, he has a lot more experience than I do and he knows a lot, I admire him, he's a great photographer

Cheers