The subject matter, the imagination, outstanding expression and sublimity of though mark a great style.
The lofty tone is maintained in the speeches of Satan. One can not help noting the rhetorical eloquence with which Satan encourages the fallen angels. The same sublimity of style marks all the descriptions in the book.
blank verse requires no rhyme scheme, the poet is more likely to choose words because of meaning rather than what fits the rhyme scheme. Also blank verse which usually is fitted to iambic pentameter provides the rhythm most suited to English sentences.
Of man’s first disobedience, and the fruit Of that forbidden tree whose mortal taste Brought death into the world, and all our woe, With loss of Eden, till one greater Man Restore us and regain the blissful seat, Sing, Heavenly Muse, that, on the secret top Of Oreb, or of Sinai, didst inspire That shepherd who first taught the chosen seed In the beginning how the Heavens and Earth
“ Milton's style can be described as; what Jonson says of Spenser, that "he wrote no language," but has formed what Butler calls a "Babylonish dialect," in itself harsh and barbarous, but made by exalted genius and extensive learning the vehicle of so much instruction and so much pleasure, that, like other lovers, we find grace in its deformity.
Whatever be the faults of his diction, he cannot want the praise of copiousness and variety. He was master of his language in its full extent; and has selected the melodious words with such diligence, that from his book alone the Art of English Poetry might be learned.”