
What kind of tattoos have you gone for? My TT Orks have Grim glyphs on their shoulders and some have bands around their arms. Have you given them a bit of an edge so that they stand out against the skin as well? (I'd recommend making the _dirt layer fractionally bigger for that - the Chaos Cultist I did has 50% of the normal brightness on the outside pixel of his tattoo)
Thanks for picking up on some of these requests. I've always meant to get round to them but there always seems to be something else to do.