For posing, this is an excellent video tutorial by Jerry Ghionis via B&H: https://www.youtube.com/watch?v=kmi9TPQ57Mo
I jut love Jerry Ghionis, and as a wedding photographer I seek out every thing he does and soak it up as best as I can. I personally think the man is a genius and a genuinely nice guy.
This is also a good one from him: https://www.youtube.com/watch?v=H2nNxaBA6ss
I’d give anything to attend his workshops – that is on my bucket list. 🙂