Gorgeous photo! I love the light on the mountains, like you said perfect light. Like Tony I have never done a blend of multiple exposures so I can not comment there. What I can say is there seems to be a nice seamless blending though as I don’t notice any aberrations or otherwise funny areas.

My two comments photographically are to much sky and to little contrast. First, I would crop a little off the left and a little more from the right and then bring down the sky. If there were some clouds or something I wouldn’t mind so much.

Second is contrast. I see a general theme in all your shots, most recently the elk where you are in my opinion lacking a little in contrast. I wonder if it’s different computer setups? But in this shot, I think the reflection looks beautiful and the real Mt. Are a little light in contrast. I would add some contrast with a general curve to the entire shot. I think that would darken the foreground trees more, but would be beneficial.