Thief Redarked - Animals Concept

My free time this year was mainly devoted to this passion project, redesigning characters and creatures of "Thief the Dark Project".
As a great fan of this game and original trilogy I wanted to do Thief justice in a way that the reboot from 2014 didn't.
Burrick
Burricks are burrowing animals, and can create labyrinthine tunnel systems much like ants, yet even boring straight through solid rock. Because no known material is impregnable to them, they frequently cause serious structural damage to nearby buildings and walls. Their main attack method is belching out a poison gas cloud that suffocates it's victims.
Frogbeast
It is a small and agile frog-like creature. Upon encountering an enemy , it races forward and explodes violently in a shower of blood and mess.
Spider
Spiders are one of the most common enemies found when exploring caves and underground areas. In the inhabited areas of The City, they are somewhat scarce, as they are usually exterminated on sight. But in the sewers and deep underground, they are far more common, and come in three varieties, all of them venomous.