There are two ways to go about it. You can take a compass and draw a perfect circle and make two perfect eyes as neat as can be. Or you can do it freehand and have some fun with it. Like I did. Give it character.
“I do not yet know why plants come out of the land or float in streams, or creep on rocks or roll from the sea. I am entranced by the mystery of them, and absorbed by their variety and kinds. Everywhere they are visible yet everywhere occult.”