When I first laid eyes on this, I immediately felt the presence of the spine-chilling sentinels from the Matrix movies. Being organic and mechanical at the same time is twice the horror. The slime and ooze of the hungry sentinel give life to a sense of threat and danger. Builder Jayfa further evokes our heightened feelings with an attack on a fallen soldier.
The dinosaur tail end sections really make great use of exoskeletons and things that make nightmares come alive. It also does seem like it would have taken Jayfa some time to balance the creature for the perfect shot.