I don’t really like to have a white sky in my photos. But here the only other choice was to make the sky grey, and I really preferred to not have that. The day I took this, under the Matterhorn in Alps, most of the sky was covered by huge clouds, so no change for any real detail there, even with HDR. But I did like the reflection, so I edited this photo anyway :)
This is a single exposure, edited in Lightroom and Photoshop.