I found this on AnimeYume.com, a fansite for anime. Here's the original scan: http://animeyume.com/site_features/calendar_scans/iy04calendar3.jpg
I just made the colors stand out more, like making Inuyasha's clothes more red. I also covered up the logo with irises! I thought about adding textures and stuff but nothing looked right. So I just left it like it is now.
Enjoy!