I agree...I love the "curve" of this image.
You cannot protect your work from theft if you put it online. But there are some things you can do when you find theft.
I have been pursuing copyright infringements for the past 3 weeks and I have brought in a large sum of money. Infringers have included a large university, a major retail distributor, large architectural firm and the list goes on... Right now I am getting them to pay on threats of legal action, but in reality those threats have no real muscle, because my work was not registered with the U.S. Copyright office. I have just been lucky at getting them to pay. And I am really good at letter writing.
I sat down last week with a local copyright attorney for a FREE consultation. It was very eye opening!
So I have now registered ALL of my works that are on FAA with the U.S. Copyright office. It can take 6 - 8 months to get your certificate, but even a copyright "pending" status holds more weight in most states. Once I have the certificate, I can go for larger sums of money when I find infringers....It goes up to 150K for willful infringement. I can handle the little ones myself and send the big ones to my new lawyer. So far it has been soooooo worth it!
I spend about 30 minutes each morning using "Google image search" and "TinEye" and "ImageRights.com" looking for infringements. When I find them, I make screen prints and then send a letter and an invoice to their email address (when I can find one). I also send the letter to their image host. Working great.
You can't stop the theft, but you are NOT helpless once it happens! Good luck!