No, there is no blanket term for this. Your first image is low key — the predominance of tones are dark. You may have some success in searching for low key landscape. However, this isn't necessarily cold — although you could add that to the search, too.
Unfortunately, in photography, especially recently, there is some confusion between a low-key image and low key lighting, where the "key" refers to something different. A low-key image is as described, predominantly dark tones, and the result is generally somber, restrained, depressing — or maybe your "cold and relaxing". Low key lighting, on the other hand, results in high-contrast edges standing out from a dark or black background — dramatic, mysterious, taut, and not what you're looking for. (More on all of this here.)
But that said, your second image isn't low-key in either of these senses. The sky is overcast, and the coats and the snow are cold. There's a landscape in the background, but I wouldn't describe the photograph as a landscape in genre. (If I had to categorize, I would say fashion.) So, I'm kind of at a loss at a link — but that leaves my conclusion the same: whatever you are looking for, there is not a single genre term for it.