I have both bags, and unless I am standing totally still wearing the Willis, I feel like a dork when she's cross-body.
Step. Thunk. Step. Thunk.
Soooo...she will probably be sold one day, though I enjoy the scale and functionality of the bag. The manor is a bit easier to wear cross- body but does have a wider profile than is ideal and the handles on mine are always a bit wonky.
I'm thinking about wrapping a twilly around the handle of the Manor, and maybe shaping some wire underneath to hold the handle shape. If you're into scarves on your bags maybe that would be something to try?
Both bags are beautiful, so you just have to trial and error until you find what works for you