Japan?? Chinese export??

I have seen these same two pictures on eBay in black and white. They look like someone scaned pictures from a book and enlarged them, then put the photocopies into frames? Which tells me the pictures are in a book somewhere. My items are in colour and on rice paper or pith paper, the frames are hand carved wood, under glass. Any clue of origin or artist? They are 18 x 15.5 inches each. Not scanned photocopies.