16 colors (+3 for signature) Used my own sculpt as reference 0x4fffwhite.deviantart.com/art/Bust-360200077
Finally finished this one! An very rough and unfinished version was released almost a year ago at the outline demoparty artcity.bitfellas.org/index.php.
I can with certainty say that I've never spent more time on any one project. It's still not perferct, but I don't care anymore. It's done! And I never want to look at it again!