I started with some fine copper wire, I don't know the gauge. Then I just started twisting. I leave enough length on each branch to put a glass bead on, then I snip off the extra. It takes a long time to add the beads, but I love the effect. Let me know if I can help more.
How do you even begin one of these? Every one of them are gorgeous and fantastic detailed work. I would love to create one for myself but I don't even know where to begin! lol You must have done some studying on tree's because the roots and branches look so natural!! Great work congrats!!