I'm doing an art challenge with 100 themes and have chosen to make small artist trading cards which are 2.5 by 3.5 inches.  This one started with a photo and "Lemon Tree" as the theme.  I applied a "oil painting" and other filters.  The lemons were added last but I didn't apply any filters so they would "pop."  It isn't like any lemon tree you'll actually see, but it resides comfortably in my imagination.