Raj, the way you brought out the sky looks completely unnatural. In fact, it almost looks placed behind the mountain range, not floating above it. Then where you chopped off the trees on the right gives it an obvious faked look, like you composited the sky -- but you didn't...
You've then applied way too much contrast/clarity to the hillside and background. It's natural to expect to skyline to be in haze, there's nothing wrong with bringing it out a little, but the way you've tried to pull all the detail out of it, again makes it look composited in.
Again, the heavy contrast is working against you on that far shoreline where the shadow of the trees is reading like a drop-shadow of the shore itself, and it looks like it's hovering off the page, giving the image a weird 2-D effect with faked dimension.
The hillside to the right frame, looks incredibly over-saturated compared to the background and treeline just left.
I actually like how the girls look on the bottom, but why is there a random blurred spot on the bottom right frame?
Then, just above, the grassy patch, it looks like you brought the clarity/contrast into negative numbers and removed detail.
Be smart about your processing. I want your eye to start on the children then work up the scene to behold what they are viewing just as they are. Right now all the elements on the image are competing for your eye's attention. There was no need to spend hours on this, and it seems you are just processing just to process, and why you'd unhappy with the edit.
I'll take a stab at an edit when I'm home.