Very nice. I <3 wood
I might suggest wrapping it in fiberglass. Done correctly, it will remain light and the beautiful wood will remain visible. Fiberglass will dramatically improve the flexibility (wood usually cracks instead of flexing) allowing it to survive most impacts.
I'm also not crazy about single motor drives. We tried one motor per side this year and we lost a LOT of acceleration. Maneuverability and speed will be improved with two additional motors.