Narwhal warning

My mum just mentioned that I should have found a way to stop meanies stealing my narwhals. However I don't know how to watermark them or anything, and I didn't sign them (although even if I did it could be cropped out I guess), so please don't steal- if you copy them, reference me as the artist/author/whatever. DO NOT STEAL or I'll set the narwhal army on you. Not that I think they're worth stealing yet, just first drawings with many a mistake... but still. Trusting you nice people out there...