I then used a small cup to stamp yellow rings on the wings, and with excess paint on the glass, I came up with the idea to roll it off, creating lines on random parts of the painting. I thought that this could resemble rain. Take this time to apply more paint in unconventional ways. Maybe you have some bubble wrap laying around that you could use as a stamp?
While allowing my piece to dry, I gathered up some old drawing materials like oil pastels (crayons also work) and chalk pastels (replacement: sidewalk chalk). With a blue oil pastel, I added antenna-like lashes to the face. I also added some shading to the body with the same blue oil pastel for the sake of continuity. Using white chalk pastel, I shaded the inside of the wings' yellow rings, using my finger to smear the chalk. I also used a light blue chalk pastel to create gestural flower petals around the crumpled blue tissue paper. Take this time to add whatever finishing details you see fit. Shading with drawing tools over paint is always a good idea, in my opinion!