Stealthy Lines and Excessive Colour

I'm working on a series of illustrations for a book on poetry written by a wonderful chap called Bill. All of the poems are about butterflies and all the varying degrees of mischief they get up too! This is for a poem entitled "Butterfly Airforce" to accompany the following lines -

"The Duke of Burgundy looks quite a dandy,
And when in combat, drinks vintage brandy."