Borboleta #6 / Underpainting

I've begun #6 in my series of butterfly paintings. This is one of the 80 species of Morpho, actually not really considered a butterfly, but in a class of their own. I began the initial washes with a light and delicate touch. The previous painting I began with very dark washes and went in and lifted and manipulated the washes with subsequent glazes or washes. I wanted to approach this one a little differently, more like the painting of the Ruby-spotted Swallowtail below -