My biggest thing I try to do when critiquing my own PP work is to try to look at it as if I were someone completely unattached to the picture and unfamiliar with photography in general. While it is always very nice to have experienced eyes look at your shots and give thoughtful critiques and advice, I'd say that 99% of the people who are going to look at your work (in general, not here on the forum specifically) aren't going to be familiar enough with your work to really evaluate or even notice some of the more subtle tweaks.
For instance, at first glance when trying to look with a novice eye, your #1 modification simply looks brighter than the original. Nothing more and nothing less really. #2 almost looks identical to the original.
To me, that is what it really boils down to. There is immense satisfaction in capturing and modifying an image to our exacting tastes, but in the end most of the people you show it to aren't going to know or care about how much work you put into it, they're simply going to see a pretty image.
All that said, I think I like your second edit better, it looks a little more natural to me overall.