I like the bows - would make a good addition to any fantasy based mod with some textures on them
To set up Yafray, just download it from
www.yafray.org and follow the installer instructions, then go into Wings and hit the Edit | Plugin Preferences | Yafray menu option, and browse to the location of yafray.exe. There's no plugin you need to install because Yafray support is built into Wings.