I painted all the Moria Orcs (or goblins, depending on what you want to call them I prefered goblins!). These were low poly 'agents', created in Massive crowd software, that was specifically developed at for The Lord of the Rings to enable the creation of the big battle scenes. The textures were very low-res, maybe only 1k or 2k, to keep them as effecient as possible. We used photos of the Weta Workshop's live action costumes for reference.
The last two shots are were orcs that get accidentally hit by the cave troll. We replaced the live action orc with a digi-double at the moment of impact.