It's real, I took the pic myself at the pop-up gallery last Friday. You can read about the event here:
What that blog doesn't tell you is that after your reservation gets read and you get past that nice lit hall with the Ludens statue, the
very first thing you see is a showcase of Kojima's conference passes and Death Stranding's pre-release awards:
Not only that, but the gallery's walls were plastered with Kojima quotes.
But what really struck me is that despite the event being a
gallery, NOTHING was labeled except for the selfie wall.
So I had no idea who made any of this gorgeous concept art.