Yeah it looks a bit wide I agree. I was going suggest doing like this:
But I don't know how achievable that would be by just staining the quilt. You would reed to route a shallow cavity and do inlays I think. Anyway, something to think about.
I like that look. Almost old school surfboard like. You could just do it in transparent nitro colours.
Builds to date
#1, 3 string box guitar
#2, GR-1SF, November guitar of the month 2016
#3, Charvel Surfcaster tribute scratch build. ( Completed )
#4, Pawn shop Strat ( Completed )
#5, Current build MM-1Q