I got to thinking, I've done so many of these limes that I can do it with my eyes closed. So to prove my point, I did lime 66 with my eye closed. No kidding.
I taped the watercolor paper to my drawing board. (eyes opened for that) Then I filled the eye dropper with ink and before I had my hand to the paper I closed my eyes, got a feeling for the center and drew the lime with my eyes closed. Then I mixed the paint on the brush and before the brush left my palette, I closed my eyes and painted with my eyes closed. I did this over and over. I did the entire painting and even signed my name with me eyes closed.
I am amazed how well it came out. I can really paint a lime with my eyes closed.