I would suggest you have a think about what it was in the scene that caught your eye. Saying you're not happy with it would imply that
you think it needs something. Cast your mind back to being there. What was it that made you press the shutter? Use that memory when you work with the sliders in LR.
The scene looks flat either because it was flat, or because you've pulled down highlights and lifted shadows to make it flat. If it was flat to begin with, then you've recreated a scene that wasn't that exciting to begin with.
For me, images I'm not happy with and don't know why, are because I wasn't really thinking about it when I pressed the shutter. It was 'just a pretty scene', but at home, on a PC screen, it is far less satisfying. Things I capture on a whim are rarely worthy of the wall space.
For me, the image is a bit bland. I quite like the sky (colour) and the mountains with the misty bits. I think it's the trees for me that spoil the image. They are extremely flat and the forum compression has done you no favours. No highlights is liveable-withable for an "atmospheric" photo, but no shadows isn't. If you look at the foremost ridge, you can see a definite "shadow" to the rim, separated by the mist in the foreground and mist behind it. It gives strong definition to the ridge and provides interest to the viewer. The trees are just a clump of 2 tones.
All in my opinion of course. Take what you like and leave the rest