Alienface in Blender
using http://www.renderflow.com
post in Photoshop
(background added)
Train made in Geocontrol 2
www.geocontrol2.com/
Texturing bacjground in Carrara
http://www.daz3d.com/products/carrara/carrara-what-is-carrara/
render background in Octane
www.refractivesoftware.com