TX-4 mini-series: Descend
Once through the planet's atmosphere, a crystal-like structure is clearly visible. Although the majority of the planet is not of volcanic nature, the insertion of the structure must have caused eruptions and surface movements, hence the strange looking mountains and rock formations surrounding the artifact. At its base, some kind of radiation has been traced and holographic-like shapes happen to appear from time to time.
Concept prepared for a new e-zine about sci-fi art. When the first issue is out (next month), I'll provide the link.