For the fire truck, I wanted to include some kind of villain, much like we did for the bus. Nehmaar Reem, The Harbinger, was a figure that I had been playing around with since late 2018. 
The first version looked more alien and was intended to go with the lighthouse. The story changed a bit. :p
For inspiration, I explored a lot of bizarre shapes and expressions. Articulation on a figure like this is a complicated subject. I wanted to make sure it had some articulation, but would be easy to prop up and would not fall apart after rigorous play.
Another take went more into the direction of a large cloaked figure. The minifig head combined with the weird proportions and ominous cloak and armor gives it a very eerie presence.
In order to tie it in with the aesthetic of the ghosts in the app, I explored a printed face that looked like a scaled up minifig head. This was a big hit with the other designers on the team and was combined with the first figure to make the final design.
The final design was then brought to life by some fantastic graphics that carry over into the minifig design. I love the fact that we could convey Nehmaar Reem's dimensional shifting in a very LEGO way.
