Thanks for the nice comments :-)
@Murray
Did you read my text? ;-)
@kbdrand
I have to say that I am not exactly sure, because I experimented quite a bit with the flesh. I think I started with a mix of Dark Flesh (GW) and Warlord Purple (Vallejo). Then, I mixed in more and more Elf Flesh (GW) with each layer. The last layer was almost pure Elf Flesh I guess. IIRC I also used some very thinned Gore Red (GW) to put some shades here and there. Something like that :-)
And here are the promised pictures of my convict and the chihuahua. The little doggy was painted in a rush. So, I might rework parts of the models in the future.