I painted the lavender and bee in watercolors and did the lettering with my Zig Clean Color Real Brush pen. I kept the design of the lettering simple so that I could focus on technique. Keeping consistent pressure with these pens takes some practice.
The lettering was originally done in black but once I scanned everything I changed the color to a deep violet to complement the flowers. When I was happy with the design I printed it onto watercolor card stock.