Final answer:
The speaker's use of allusions in Derek Walcott's poem indicates a deep familiarity with British art and literature, highlighting his connection to British cultural history.
Step-by-step explanation:
The allusions referenced in Derek Walcott's poem Midsummer suggest that the speaker is very familiar with British art and literature. The poem mentions "Calibans," a reference to a character in Shakespeare's The Tempest, and "Turner's ships," alluding to the painter J. M. W. Turner, known for his seascapes. It also references "Caedmon’s raceless dew," an allusion to the first known English poet, Caedmon. Walcott's use of these allusions demonstrates a deep engagement with British cultural history, which is reflective of the broader complexities of colonial and postcolonial identity.