How does Alexandre Dumas use imagery in The Vicomte de Bragelonne?

Imagery:

"Louis began to float, undetermined between the hatred which this so powerful man inspired him with, and the pity he felt for the other, so cast down, who seemed to him the counterfeit of the former. But the consciousness of his kingly duty prevailed over the feelings of the man, and he stretched out his finger to the paper."

"If D'Artagnan had been a poet, it was a beautiful spectacle: the immense strand of a league or more, the sea covers at high tide, and which, at the reflux, appears gray and desolate, strewed with polypi and seaweed, with pebbles sparse and white, like bones in some vast old cemetery. But the soldier, the politician, and the ambitious man, had no longer the sweet consolation of looking towards heaven to read there a hope or a warning."