The style influence that Okami has and what I would like Cat and Rat to have is that of the old Japanese Woodblock prints and paintings known as Ukyio-e.
Ukiyo-e was very popular in Japan between the 17th and 20th century and has a very unique style to it that makes it very recognisable.
Okami took some influences from Ukiyo-e but was more heavily influenced by Chinese watercolours and Sumi-e art. Sumi-e is known as ink and wash painting.
We wanted to have a similar feel to traditional art but be made in 3D for a distinct look.