It is copy of polish MIMO (
http://mimostudio.pl/#!prettyPhoto ) studios work. They are foremost visualizers too, not architects.
On other hand, Matheus is honest and good guy and I think he didn't tried to smuggle it, just "forget" to mention inspiration.
Imho, outside of "western society" something as giving credit is quite unusual, and they see copying as almost akin giving respect to original author.
It is unnerving sometimes, because, I really don't care if someone does copy, but I think one should always be atleast honest, and mention CREDIT/Inspiration.
I am glad community sorts it out, atleast something interesting happens outside of the super-positive stuff. Drama is so much better