I made a link on the Lepidus Blogellus site to an excellent BBC show on Roman Satire that may answer some of your questions about how Satire 1.9 operates-- check it out if you have 42 minutes to spare for the podcast:  "Roman Satire".  As for the Odes, I'm glad you don't hate Horace; he grows on one over the years because he is so incredibly, meticulously clever-- you note the importance, for example, of the name Chloe as part of the overall imagery.  Similarly, the name Pyrrha (fiery) is important for 1.5, as it is the trigger for latent fire imagery conveyed by color words (she has flavam comam, she is in a bed of roses, she is aurea) that contrasts with the metaphorical sea imagery that culminates with the image of Horace as a naked survivor of the shipwreck of his Love Boat (you are too young to have seen this dreadful TV show, but you can google it) hanging up his dripping clothing-- all conveyed without anything as obvious as a simile!