An update on a previous image.
For the human figures I exported a model by 'Billy-T' from DAZ Studio to use as a base sculpt for a low-res figure that I then textured and rigged myself based on Jonathan Williams's "Low Poly Character Creation" tutorial series.
With the exception of the sky the textures are hand-painted in Photoshop Elements.
Rendered in Cycles with post-processing in Blender.