So I've found some of my photos (especially the Malaysia ones) on some Tumblr pages :/ One or two of them have linked the photo back to my DeviantArt page, but a couple of them are just posting them as their own photos.
I don't know what to do about this. I know everyone says that photos are easily stolen but I wasn't expecting this so early on - I'm not even that good!
I guess I could manually report the Tumblr pages. Or add a watermark...which I really don't want to do but it might come to that.

*sighs* What am I supposed to do about this? Any ideas?