You are referring to the painting called "Landscape with the fall of Icarus" painted by Pieter Brueguel and associated with the poem of the same name, written by William Carlos Williams.
The painting is attached just below.
Answer:
They describe the vibrant landscape depicted in the painting.
Explanation:
As you can see, the figure below shows a scenario with strong and attractive colors, that capture the attention and that fit perfectly with what is being described in Williams' poem.
The poem and the painting are a perfect match, managing to spark the reader's visual interest and an explosion of feeling for the words written in the poem.
The poem itself uses the words pageantry, awake, and tingling relating them directly to how the painting was established and how engaging it is for you to be observing it. These words were used to describe the vibrant landscape portrayed in the painting.