From our garden I cut clematis, clivia, and iris. The tulips were store-bought. I assembled a composition to echo Flowers of Spring’s Desire and Poppies and Mallows, but using a somewhat different color palette.
The LAB color L-channel inversion on black followed (for information on how to do this, see my Creative LAB Color course).
To learn about my light box techniques with flowers, see my FAQ Photographing Flowers for Transparency. We also have one place still open in the hands-on workshop on the topic scheduled for June 2019.