Thank you, everyone.

Microwar: Yes, it's my TG moto. And, really, even an entirely procedural scene is essentially 'fake', I mean, it's hardly 'real'.

Ra: That might be possible if I carry on with the animating, I've reworked the above flight and I'm over 5 hours rendering per 60 frames, at this size. I might just do a longer, 480px animation.
Hannes: Yup, two separate 2048px image maps. A greyscale displacement, followed by the colour map directly after, both are just set in sequence, as child to a single surface layer.