Thank you so much! Yes, I agree it looks a lot more organic with the edges textures and values. I'm not sure wether this succeeded by luck or by skills, so now I am kind of afraid to do more portraits, but I guess I've just gotta do it anyways.
Well, changing something in your technique definitely helped! If I'm guessing right, you don't use that much soft-edged brushes or at least you correct the edges in the end. Just keep up the good work and the next one will be okay too.