Good heat on those deliveries.
Your foot positioning intrigued me.
I am not a bowler so I would go with neil's advice before mine.
All that said I would like to see you get your front foot more in front of your back foot. Get it another 6 inches to the left.
That will get you bowling more side on.
Will probably also help with your head position somewhat.
Auckland 47,103, 27, 269*, 59, 118