The first digital caricature I ever did was the Woody Allen one. I used to have these on an old site called Quarehawk.com. Someone offered to give me €20 to use the Simon Cowell one in an iPhone app they were planning. And someone stole the Mr Bean one to advertise their own shady “Caricature” business.

Anything good you put online will get stolen. If you can face the harsh truth about your work then start a blog. You will quickly see if the content you are making is valued, ie worth stealing. Eg nobody ever stole my David Mitchell cartoon.