Maynard: I think most of us grew up in a pretty sterile environment. A
lot of that stuff just wasn't around. It's all pretty much peaches and
cream . . . flowers . . . everything's nice, ignore all the bad stuff.
And the world's just not like that. And I think that the sooner people
get to the point where they realize that the ugly stuff is just as
important as the beautiful stuff - it goes hand in hand, I think that
we can get on with evolving. -The Tool Page: Articles
It's happened to me before, and I did nothing, so that's probably the answer
If the person wasn't making money of it, well I would be flattered and that's it probably. If they were making money off it I might ask them for a share of the money, and if they wouldn't pay then I might report them, but likely I'd struggle to work out who to report them *too*.
Tracings don't really count in my opinion, unless they are pixel exact ... in which case they aren't a tracing, they are just a copy . I've done work which was so close to the original (a photograph usually) that it could be called a tracing and not original art. I don't buy that. The pixels are not the same. The art is in making a drawing from reality, and it's not easy to do that. Someone attempting to reproduce my art via their own hard work is probably trying to learn from it. It would be better if they credited me too, but I realize that 90% of the time they wouldn't even know whose art they were working from, it would just be something they found on Google.
I'd probably explode with rage as it's not fair that I'm losing money and possibly gaining a bad reputation as it sounds like the user is selling it to multiple people. Then, no one will want to commission me ever because of some stupid loser.
I'd be flattered as well, as my art is pretty.....bad atm XD and then i would be mad at them and report them or something