As promised, here is the process post of the black unicorn. The process for this one was basically the same as for the white unicorn, except that I added the hair at the beginning. That way I did not have to worry about a seam at the top of the head, but it made the whole process much more complicated because the curly hair was sticking to everything and started to look gray when I sanded the head down, because the dust clung to the fake hair.
I started with an aluminium foil, wire and sticky tape armature and glued the hair to the back of the head into a deep cut I made with a scalpel. I used a lot of glue and it was a messy affair.
This is with the first layer of clay added. I wrapped the hair in foil so it did not get stuck to the clay. The nostrils look really stubby and kind of awkward here, so I changed them the next day.
I looked up some pictures of draft horses and changed the nostrils that way. And I added a little beard which you can barely see in any picture because the head is always resting on the chin.
The base coat of the unicorn is black gesso. I like the idea of the big black unicorn head but it was hard to add any details like I did with the white unicorn, and taking pictures is kind of hard.
Here it is, all finished. It has a gilded horn as well, and yellow-ish eyes. And you can see the beard in this picture. There is nothing else to say, except that I really like handling the two heads, but I put them away for now because i want to use a mat varnish and I have not found one yet that won't turn yellow after some time.