My DH was an art student in college and drew a boot that reminds me of your shoe. He matted it and I think we still have it here somewhere. My son does original artwork for his own t-shirt company that you might like to check out when you have a chance. http://www.redeemerwearapparelco.com/onlinestore.html
Very gifted and talented!!!!!! WOW, WOW and more WOW!! I looked and looked at that shoe wondering why you had it sitting on that paper until I was sure you had drawn it!! AWESOME works, all of it...now go make some money with your talent!!