Xotl, Inter-dimensional Sentient Hypercube

Another Pantheon of Fiends addition, Xotl is the corporeal manifestation of a piece of alien technology so hyperintelligent, it synthesized DNA to grow itself a biological body from it's cube form (Centre Chest). The idea was originally inspired from some kind of creature with only a brain for a head, overemphasizing the supporting tissues like the sternocleidomastoid to give it a unique silhouette for all that psychic brainpower. Its conception was found in bands like Fallujah and Rings of Saturn

Alien Marauders

I have an idea for a race of underground invaders based on a cross between wasps and ants, with the physiology of gastropods like shelled sea-snails. The idea is of a hive of varied creatures that can interlink with one another using specialized extremities in their soft tissue to form more complex creatures. This also gives the attack forms the ability to swap between a number of simpler organisms that function like living weapons. I'm doing my best to exaggerate forms try to come up with unique silhouettes. Seeing as how ideating the crux of a new concept is one of my favorite parts of the process, I figured I'd show some.