Borboletas rabo-de-andorinha · Monocromático índigo

Delicate watercolor illustration of several swallowtail butterflies fluttering together through the warm summer air, painted entirely in deep and pale shades of indigo blue. Visible cold-press paper grain, soft wet-on-wet blooms, loose expressive brushwork and luminous white space. No text, no signature, no watermark. Vertical 4:5.