The first thumbnail here links to a 9000px wide image. The other two link to 2400px wide images.
Software used: Solidworks, 3ds Max, Filter Forge, Photoshop. The horizontal and vertical painterly streaks and stripes are a side effect of the Sketchy Painting Filter Forge filter extending the effect from where an opaque area borders a transparent (alpha) area in an image. I deliberately used that side effect here. It may only work with a previous version of Filter Forge and/or the mentioned filter :/ A hoity-toity robot talks about these at:
Pending: A variant composite of all three of these.
If you want a print, leave a comment and I'll make one available.