My Back scenes have been printed onto self adhesive vinyl and most of them mounted to the boards.  Just the last one still to do.  I used a local company who kindly did a couple of test prints so i could tweak the colours.  Anyone local to Stourbridge area who are after something similar I can highly recommend them – SAC Graphics

Below is how it looks in something close to the intended light.

Haven’t done a bit of photoshopery for a while but i found a pic of a Deeley tank in a cloud of steam and thought I’d emulate it