If this guy has so much pride in his work & the years of research it took to produce it, why does he want it limited to a single mediocre German tabloid?
(There's a good reason why look and feel isn't really protected by IP law, except in the realm of trademarks -- because, unless there's some kind of deception, nothing is lost by mimicing the look and feel of something else.)
He's not a victim, because nothing has been taken from him. The person who copied his design gained something, and so did the paper that paid that person, but the original creator lost nothing.
This is riffing, not stealing. It's a trend throughout art as long as art has been a thing.
ps. Actually he is a really good designer, but you'd have to take a look at his website to figure out[1].