After a good long while, I'm happy to say I've finally received permission to upload these here after my (unsucessful) bid for a position at a well known mobile group. The objective here was to create 3 buildings in a style of my choosing for a mobile RTS game, intended to crank out player controlled units.
These had to meet strict requirements such as fitting onto a maximum 256x256, diffuse only texture and less than 2k tri's. I stuck to both of these and had the bonus of recycling as many UV's and objects as possible, hence the level of detail I was able to achieve with "Pixel textures". I think these turned out great and even at lower resolutions, Unity's texture options allowed for crisp, hard edges even at the lower 128x128 res.
All screenshots captured from a Unity LWRP project with a post process stack for colouring, exposure and vignette.