Too many versions now for me to be able to compare at once, but this final one, post #18, looks close to me also. Light scattered from ice and snow is inherently enriched in the blue end of the spectrum, and cameras I've used seem to reproduce this faithfully. However, my eyes/brain compensate for this to some degree, and blue-tinted snow and ice in photos often looks wrong to me. More so if under-exposed, which is easy to do when photographing bright snow. In this final version the sunlit snow on the distant mountain, and in the upper right corner, looks crisply white, which is what I'd aim for. A good trick when trying to decide the white balance for scenes like this is to equalize the R and B channels at the right hand (bright) end of the histogram. Assuming the snow is the brightest part of the image, this will make it white. After doing this, snow in shadowed areas often retains a blue tint, and may even appear to glow blue. There's a bit of this in the top left of your photo, where snow crosses the very dark band of rock. I sometimes select and desaturate these areas a bit to make the "glow" less prominent - not sure if/how this can be done in Lightroom (I use Photoshop). A final thought on this image - I would try to lighten the very deep shadows slightly. I like to be able to see into the shadows a bit. Others may disagree, perhaps strongly, it's just a personal preference.
Cheers, John
