I used:
- black and white bundle: http://www.oscraps.com/shop/product.php?productid=10009883&cat=635&page=1
- mother nest brushes: http://www.oscraps.com/shop/product.php?productid=10008715&cat=635&page=2
- http://www.oscraps.com/shop/product.php?productid=33568&cat=635&page=14