It took us along time to work out how to best make the jump from the 2D designs that Eren has made in his storyboards to the 3-Dimensional puppets we are now creating. In fact it is something that we spent over 6 months experimenting with.
This involved lots of trial and error. Not just with the look, but also with fabrication. Because of our limited budget we have to be very careful with the materials we use. Looking back at our early heads they all look completely wrong now. But at the time each of them helped us to find a way forward and solved or revealed many problems.