Zoro coloring from doujinshi Pirate Ship Noah, vol 5
Doujinshi by Yamato, coloring in PS CS5.
Scanlation group: futarikiri
((I downloaded all these doujins long ago and I don't remember the site where I got it from or a link.
Every doujinshi is already burned on disk, I don't have the source link. I don't read them online.))