I'm the anon who said Diplomatic Immunity is one of my favorite quests, and your version did not disappoint! Delphine's history with the Thieves Guild is so plausible, Brynjolf is the tailor-made for a schmoozing/sneaking job, and the assassin at the end was an awesome twist (I suspect Erikur, personally, but there's so many people it could be). Can't wait to see the fallout from Bryn wreaking havoc in the Embassy. Really curious to see if Elisif is going to get her hands on Ulfric's dossier, and what she's going to make of it.

As a side note, your characterization struck me as especially good in this chapter. Brynjolf, Falk, and Elenwen are all standouts, especially the latter. She creeps me out anyway, but something about First Emissary "interrogation-isn't-actually-my-job-anymore-but-I-like-to-watch-for-kicks-and-giggles" Elenwen being all motherly and understanding just makes my skin CRAWL.