Please take note that I am far from being an experienced jumper (only 7 jumps right now). I, although, have been teaching swimming lessons for a long time so I am kinda used to watching body movements. Experts make sure to correct me please :)
Look at your feet. Your right foot is pointing back while your right foot is pointing up (more air pressure on your right foot). Also, you can see your left leg is a little more bent than your right leg. (more air pressure on your right leg) Considering both of these points, the wind obviously hits your right leg "harder" which induces a turning movement towards your left.
Some tunnel will definitely help you.
Edit: Somebody beat me to it. I guess I hadn't gone all the way down before writing my reply. Glad to know I was pretty spot on!