A delicious bottom, and those lovely cheeks blush very beautifully. Altogether a wonderful spanking, and great that it includes a wheelbarrow session. A shame we never get to see her facial reactions, though.
Spanking makes you wet while strapping makes you dripping wet (the reason for the towel) - hopefully the towel won't be too saturated to protect the pillow from your master's cum too.
Yes - the sound of a thick leather strap striking your bottom would be very intriguing. And I know to place a towel between the pillow and your pelvis...