hmm....which touhou game is this O.o, seems to look like perfect cherry blossom to me..but the art is different, looks like zun's drawing skills have improved :/

Indeed, it's PCB. Look at the writing in the background of some of the pictures. Those writings are one of the things I love about the game :P

The actual drawings, however, look more like fanart than the originals. Not that I'm complaining, these do look better :P good work to whoever did them.

The images are from one of PCB's trial versions. Removed oota_jun'ya_(style) and artist_request.