Cross posted to the 300 plus lens club and K-3 images.
K-3 and DA*60-250 with HD DA 1.4 TC.
ƒ5.6, ISO 400 , AV
The premise to high key shooting is , in high contrast situations you ignore the high end of the spectrum, allowing it to be bleached right out in many situations, while focusing the entire DR on the sensor (or film) on the subject.
IN the last image , looking at the squirrels tail you have a clear demonstration of using the entire DR on the surreal, with tail detail and colour that might be compressed and much less dramatic in a more typical treatment of the image.
The rest of the images, not as high key, but the same basic principal is applied. The full dynamic range of the sensor is used on the subject, background or elements not essential to th subject are hung out to dry, as it were.