All the photography on this website was done by Sanne, she’s a professional photographer specialized in Pet Photography. You can find more info about her work on her portfolio website, Pet Portrait Dierportretfotografie (in Dutch):

Logo Pet Portrait Dierportretfotografie

She also has a separate website for her other two specializations, Portrait and Wedding Photography, which you can find at Sanne van de Berg Fotografie (also in Dutch):