My colorings differ all the time

[recent pic]Kingdom Hearts BBS: http://fc02.deviantart.net/fs70/f/20..._Artimicus.png
[old-ish]Drawing for the song Braille by Bring me the Horizon: http://fc03.deviantart.net/fs71/f/20..._Artimicus.png
[old]A drawing i did for a friend looong time ago: http://fc02.deviantart.net/fs50/f/20..._Artimicus.png

I mix it up all the time. Sometime precise cellshades sumtimes just smudgy stuff lol