Lovely character design. i really like the detailed studies of the head above.
For layout, I lean towards the top two. The rules note that your illo should show at least 80% of the full character and 3 cuts off more than that. (Or you could pull the camera out.) 4 will be a challenge because of the high camera angle, and might not show off your character in her best light (ie it would be great to see the beautiful face better!)
Good luck whichever you choose!