I took most of the shots with a Nikkor AF 50mm 1.8D lens. Many of the shots were perfect with morning sunlight. Sometimes we used a Nikon SB-800 at 1/8 or 1/16, as fill light.
I also tried few shots with the Nikkor 105mm AF/DC. Initial shots were O.K., but as my hands got cold (and numb), the images became out-of-focus, because I did not use a tripod or any other support.