Low angle: A marigold from below with a flowering tomato plant behind.
Rule of odds: A tomato vine with one red tomato and two small green ones.
Filling the frame: Two potted plants, with a tomato label in the foreground, a tomato plant in the mid-ground, and a purple and green pot with marigolds in it in the background.
Rule of thirds: A marigold and some unripened tomatoes in a pot.
Framing: A tomato vine against a white fence. A vine on the left adds depth to the photo.