Verse 17 describes the two-sided tail, 18 its motion and shriveled texture, 19 the fullness of thighs, 20 the back and neck framework, 21 the flanking curves, 22 the elbow spread, and 23 overall construction-like solidity.
The sequence is not only ornament. It establishes an image of a reliable desert mount through physical detail. Understanding the similes calls for vocabulary, grammar, and knowledge of familiar objects such as wells, bows, buckets, and masonry.