Format first
A square social post, a portrait story and a wide banner need different compositions. Decide the placement, then describe the layout for that shape.
Describe the space
A jar of citrus marmalade positioned lower right on a cream surface, soft morning light, a quiet empty cream area across the upper half for a headline, no text.
Finish in your editor
Prices, legal copy and finished typography should be added in your design software where they stay sharp and correct.