Somewhere along the line, I decided, as much as I loved the default Synth design, I wanted to start customizing Tiamat-B, give her a unique spin of my own. This here represents the first clear concept I ever put to "paper" of of how I wanted her head to look, with a sort of shark-like triangular visor, a green cable on the back of her head, and two pairs of fins.

It was also how I discovered the true power of Paint.net's almighty line/curve tool.

As always, credit for the inception of the Synth "species" goes to the mad genius  vader-san