Landing page: http://salisburygreenhouse.com/
Placement: Desktop newsfeed
Critique: This ad maximizes the space for text by putting several images together in one. It makes use of the 20% rule by placing the promotion within the image complete with all details. This leaves more room for the value proposition and a bit about the business within the text. The text is lengthy to read and a call to action button would be easier than adding the link at the end of the text. Someone who reads the promo in the image can then simply click the button to move on to the next step.
By clicking the link in the post you are taken to a search page to look for plants. It might have been better to land on the home page or a products page for easier navigation. As it stands, this page is a bit confusing if you don’t know much already about plants.