I finally found the time (and silicone) to give Red Skull a try. I hadn't any life cast available, so I had to make a short necked version (it won't really matter when I'm wearing a SS uniform with it). The sculpt took me 2 days, I had to rush it a little bit, but I think it doesn't look too bad for the time I had. The only thing that annoys me are all the bubbles of this particular casting, but I don't have enough silicone to make a new one right now.
I will be wearing the full costume this sunday for a special event in my island, I'll post pics as soon as I have them.
Yes, that's a Loki horn besides the mask