Epilogue.net doesnt take my work, because they think its too hopeless, but let me say this art is a development of my very own. (im actually more of a programmer than an artist hehe)
I customized the gimp brush so it would operate 10 times faster at opacity 1%. all i do is have a background of peach, then i apply translucent dark yellow at a very translucent rate. (my program speeds up the additive process by 10 times, so you get it done pretty quickly) it ends up making it red! then i apply cyan a little on the top and it gives the skin a golden feel.
Thats about it.