6D + 24-105 F4L (...)
Sorry to be harsh (not trying to be), but there's too much empty sky in the upper 2/3 of the image. Do you have any other versions that pan down slightly, and perhaps have slightly more exposure?
It's OK, I appreciate your input. That was the lowest I could get. In PP I was troubled whith that empty sky and I considered cropping, but I didn't like the results so I left it as it's showed. I also underexposed it in PP... I always tend to underexpose in PP.
crop it off and make it a panorama
Cropped and a little less underexposed...
I like that better, but I keep wanting to go back in time and push down on your camera! The snowy part of the mountains, it's just too close to the bottom of the image. If you only took the one shot...I need to ask why? I would have taken at least 6 different shots with slightly different compositions (and probably more like 10)...while also deciding on exposure. I'm guessing I would be deciding between +2/3 and +1 2/3 EV compensation...in order to maximize the bits of info in the dark areas...especially since there really is no very bright part of the image. Rule # 1 in digital photography is, you maximize the RGB exposure (without clipping) by looking at each one's curve, either after you've taken test shots, or during live view or something. It's not always exactly right, depending on the camera, its light meter, and other factors...so it's best to just take the shots, and decide later which ones are best. Or else do a series of different exposures for possible HDR merger later.
You can always make an artistically intentional "dark exposure" from a normal or slightly over-exposed one, later in post editing...if that's what you were going for. But you can't bring up exposure of an underexposed image later, without it looking like a robot vomited digital bits all over it! Unless of course you have a D800, in which case you could just leave the lens cap on, and get a normal exposure...or at least that's what those fanbois say...