The curve on the torch flames is a good start. If you imagine a pose as less of something you move into, rather something between two positions, something you move through
, that's a helpful mindset. Limbs curve away from where they're going, fabric and hair swishes and wraps around them, and anything small or light will move with air resistance. If they're holding a long object like a staff, the force of their turn will push the end they're holding forward, so the other end will tilt back.
I'm not going to go over wind as an artistic concept, because you clearly understand that, but it might be helpful to visualise exactly where the air is supposed to be going while you're building up the figure.
I mean, talking about the last Touhou girl, I'm presuming she's just turned around after hearing a noise. There's clearly movement there, but sometimes the way one thing moves is at odds with another; For instance, some of the hat tassels are flying one way while another flies the other way. Sometimes the impression of movement isn't just about adding in more moving details, but eliminating the details that are taking away from the overall direction. There's also the point of centrifuge - when you turn, things bend away from the centre of the turn, regardless of speed. People rarely turn on the exact central axis of their head, though, so don't be afraid to have the front and the back of their hairdo flying in the same general direction if it looks better.
Also, just as an aside, people who are scared or defensive tend to raise objects to protect their body. That stance will then be read by the viewer. It sounds weird, but a picture where the girl has the staff head pointing up is slightly scarier than one where it's pointing down.
I don't know. Sorry if this sounds patronising, sometimes it's hard to tell what someone knows.