You lucky people on Pinshape get to see the improved version of this terrain piece straight off the bat!
Based on three user's submissions over at Thingiverse and a little polygon addition of my own, this was remixed in 3D Builder (a Win 10 app).
Source files not created by me:
Darky-System - Shadespire Base
daandruff - Crystal Cluster
Valandar - BaseRocky from the Simple Bases pack
The print in the image was created in Cura 3.6 slicing at the Draft-0.2 setting, so a finer resolution should yield a better looking result The printer used is an Ender 3 with a standard 0.4mm nozzle and a 4mm piece of glass for the bed surface. The PLA used is 1.75mm Mamorubot Deep Gray (Pantone 431 U) which I sourced from Xtron here in Australia