speaker at podium. drawing

agriculture art background black cereal cob corn corncob crop design diet drawing ear engraved engraving etching farm farming food fresh fruit garden grain graphic hand harvest healthy horticulture husk icon illustration ingredient isolated kernel leaf line maise maize meal monochrome natural nature nutrition nutritious organic outline pencil plant popcorn produce product raw retro ripe seed sign sketch sweet sweetcorn symbol tasty vector vegan vegatable vegetable vegetarian vintage vitamin white