I finally finished my vase. I had some issues with the patina, and had to redo it. It was a real pain in the ass to remove the first patina attempt. But I don't know if I am satisfied with the second attempt either. I might redo it again, or maybe put a totally different patina on it. I will wait a while and see how I feel about it later.
The model and the finshed piece:
Here is a link to all the process photos on Flickr.