I really like this photo. Great shot. I disagree that the mountains need the level of POP that has been mentioned. Too much pop takes the depth and distance out of the picture. In the real world the distant mountains are going to be a little subdued and appear a little flat because of haze or, as in this case, harsh mid day light. Us photographers hate that real world fact. I know I'm guilty of over processing the distant objects and try bring more contrast to distant objects that probably should be left alone.
While I do agree the the mountains need a little work. I attempted to I give more saturation and contrast to the trees to bring out more of the yellow, and then lighten the shadows to bring more of the focus to the real star of the shot; the moose. I did a few curve and saturation adjustments on the mountains just enough to take out most of the affects of the harsh light.