Actinidma

Actinidma was a giant monster that I made during a big kaiju kick.
He's a gruesomely mutilated and irradiated tyrannosaur basically risen from the dead after an atomic blast reactivated his dead tissues, frozen in Antarctic ice for millennia.
Half blind, half death, and in constant pain he roams the world, trekking across the tundra of Greenland down to Canada and North America, settling down in South America where he destroys all in his wake, spreading radiation sickness and doom to all that cross his path.
Though he should not even be alive despite his obviously fatal wounds, he remains completely aware and vengeful to humanity for what it has done to him.
Many activist groups consider him to be a punishment sent by the natural world to teach human civilization to respect the planet that it lives on, which is more fragile and destructive than they could ever imagine.

There were some other giant monsters in this project, though I never really drew any of them.
Here is a list, however.

MUTANT MONSTERS:
Actinidma - Gigantic mutant dinosaur
Ursaqua - Giant irradiated waterbear
*unnamed* - massive mutant silverfish

OUTSIDERS:
Octosothoth - maddening alien god
Despanath - demon of torture
Abdeel - holy engine of destruction

GUARDIANS:
*unnamed* - lava beast
*unnamed* - water elemental - probably had fishy traits
*unnamed* - giant wind based bird

COSMIC CONQUERORS:
Xenoreign - tentacled saucer
Quartzla - silica energy vampire
Audrid - Planet devouring weed

MECHS:
Uncle Sam - iron titan of American pride
Red Manifesto - Great protector of communism
Masatoman - Japanese cybernetic samurai

TERRORS OF SCIENCE:
Encephelon - enormous slithering brain
Gray Goo - Ravenous nanomachine blob
*unnamed* - Horror of genetic science (Was probably going to be a hybrid of deadly insect life)