So I made long days, and worked as fast as I could. Off course at the expense of the quality, but from some distance, and at normal photo scale, it looks quite good, actually.
Here are some pics of the process.
First the vulture cap. I made it with craft foam, which is easy to shape, when you heat it a little. The head of the vulture has a base of aluminium foil, to give the basic shape, and a layer of fimo clay to make it look like a head:
After that I painted it gold:
Then I gave it a patina with aquarel paint, to make it look old. But I don't have pictures of it yet. The back will be 'closed' with a plate mail-ish decoration. (the blue things on the photo below)
Here's the jewelry. Two bracelets for the upper and two for the lower arm, and a collar, also made from craft foam. To make it a little sturdier, a layer of cotton is glued to the inside.
Here's the collar after painting, with dress (which is not finished here).
Here's the collar after the patina and the stones are added. I'm very pleased with the result!
And here a detail, to show the (very) subtle decoration I added.
That's practically how far I've gotten till now. Still a lot to do, but most of it is hand sewing, which is perfect for the evenings...
