Possibly this piece needs no introduction because the artist features in Natural Adventures rather a lot although this one is a little more cryptic than some of his other works. It is of course by Rezwonk and spells out REZER.
Because of the light conditions in the tunnel, this photograph really doesn’t do the piece justice at all and the colours have been somewhat bleached out. This is highly accomplished and complex writing with so many elements crossing over between letters in what looks like a rather haphazard way and yet perfectly creating great letters. When I see complex work like this, I just scratch my head and wonder how on Earth he does it. Great skills.