Screenshots of Krystal in Star Fox Adventures. Click on the thumbnails for the full size image.

Image 13 from Feargal Plant’s website, one of the artists of Star Fox Adventures.
Image 14 and 15 from neogaf.com, by poster Stallion Free.
Image 16 from starfox-online.net, by poster GammaRay256.
Image 17 from starfox-online.net, by poster Hakuhn.
Image 18 to 28 by Nysut.