How do the metaphors used in either Shakespeare’s “Sonnet 73” or Millay’s [“What lips my lips have kissed, and where, and why”] contribute to that poem’s argument, central idea, or theme?

Sonnet 73

How do the metaphors used in either Shakespeare’s “Sonnet 73” or Millay’s [“What lips my lips have kissed, and where, and why”] contribute to that poem’s argument, central idea, or theme?

The poem can be found below

That time of year thou mayst in me behold
When yellow leaves, or none, or few, do hang
Upon those boughs which shake against the cold,
Bare ruin’d choirs, where late the sweet birds sang.
In me thou see’st the twilight of such day
As after sunset fadeth in the west,
Which by and by black night doth take away,
Death’s second self, that seals up all in rest.
In me thou see’st the glowing of such fire
That on the ashes of his youth doth lie,
As the death-bed whereon it must expire,
Consum’d with that which it was nourish’d by.
This thou perceiv’st, which makes thy love more strong,
To love that well which thou must leave ere long.

How would the play have been different if Holinshed’s Macbeth replaced Shakespeare’s Macbeth?

Answer these questions:

Whose depiction of Macbeth—Shakespeare’s or Holinshed’s—is more interesting or compelling from a reader’s standpoint? Why?
Was Shakespeare wise to change Macbeth in the ways he did? Why or why not?

How would the play have been different if Holinshed’s Macbeth replaced Shakespeare’s Macbeth?