I think you will find that it is going to be more about post processing, than how they are shot. I have a couple pics I shot of my neighbor's grandkids, and they have somewhat of the same look. I didn't do anything special. They were shot outside, later in the afternoon, so there was no direct sun. I edited them in Lightroom, and the best were the ones I converted to B&W using the B&W option, then I used the individual color sliders in their B&W editor to get the look I wanted. I'm not saying they were anywhere nearly as good as the ones you linked to, just had a similar look, or feel to them.
I would say to do an experimental shoot, then see what you can come up with, and work from there.