These cats are the “image characters” for Jalan, a travel site in Japan. The older cat is “Nyalan” (“nya” is “meow” in Japanese), and his apprentice is “Deshi”.
The photos are terrific. You can really get a good idea of the typical things Japanese people like to do in spring, summer, fall, and winter. There are seasonal flowers blooming, seasonal food, and seasonal activities—whether that’s flying a kite during New Year’s or watching the cherry blossoms.
Not every activity is unique to Japan (of course!) and this is an idealized depiction (of course!). Still, the cats show how Japanese people usually view each part of the year.