Yeah, you're probably right about others copying his style. That particular style of artistry would be easy to copy, I imagine. Here in the states, Shepard Fairey has an entire team of street artists putting up posters together, so there's that possibility too: an art collective called Invader. BTW, I tagged you in a post: Top #11 List, because I dig what you're doing here on Steemit. It's my first curated list. High-five!