This is amazing work WZ, as Kaenyne says this brings up feelings of both happiness and sadness, this is beautiful tribute, from both you and Atolm.
P.S. I'm not sure how appropriate a 'Scottish' feature would be on a ship dedicated to a man from an Irish Catholic family, I know the character of Scotty was Scottish but Scotty didn't die on wednesday. Just my €0.02.
P.P.S. I think Schtupp's suggestion about the engineering symbol is a very good idea though.