No problem. I just... really can't stand people who feel that they must play the role of internet police, then become utter nazi's about every little thing. Sure, I hate art thieves, but honestly, and I took art in college, tracing is not theft. Referencing something is not theft. Looking at something, then drawing it is not theft. Seriously, these people really need to learn about laws. I know, I was also studying that too when I was a police reserve.
But I enjoy your art, keep it up and don't take what those people say to heart.