For those unfamiliar with the Compass Rose, this particular line of ukulele are manufactured in the design of a compass; the sound hole has a compass face motif, with north on the arrow-like headstock. Another distinct feature is a cantilevered – floating – fingerboard. Early Martin instruments saw the fretboard stop short at the join between the body and neck, so rather than lose frets, Rick Turner ‘floated’ them down to the sound hole. This leaves the entire top of the instrument free to vibrate, improving the sound.
I think that walnut is a great choice for the Compass Rose. The design of the instrument goes wonderfully well with the grain of the wood, giving a whiff of HMS Resolute.