The forests are rendered in smoky hues, stacked atop one another in billowy calligraphic curls. Zayn uses billowy vocals and buttery voice in the song. Pahoehoe lava is a relatively smooth lava flow that can be billowy or ropey. The skirt, which was usually billowy, was made from very fine fabric from China. It was described as "gently apocalyptic pop with billowy choruses".