The eyes on the feathers are pearls in different colors. It was kind of difficult to pick the colors for pearls since they reflect, but not too much. I used color pencils and used a grey stabilo pen to outline the pearls so that they would look softer.
I tried to play with the feather to give them a solid structure to reflect the structure of Aquamarines. I used stabilo pens to outline the dove and later colored it in with colorpencils.