No, it is not Metal. And it is not 'Nightwish' - for sure, whereas there are similarities as described further down below.
Tuomas Holopainen's 2014 solo project is nothing more (and nothing less) than a soundtrack for a story - a graphic novel - that never quite became a film - kind of in waiting for a film project to emerge. And it is a great story, by the way.
When I first learned about the project way back last year I thought this was just a crazy idea (I am suffering from an attack of diplomacy today..