There didn't seem to be very much going on in this episode compared with other ones. It obviously centered on Caesar's triumph, which I have to say was probably my favourite scene in the episode. Rome must have been a very exciting place when a triumph was to happen, and I think it was captured very well. People everywhere, clamouring to get the best view of the procession and a general sense of joy and celebration. I think perhaps the one thing I would've liked to have heard was the slave behind Caesar holding the crown over his head, saying 'Memento Mori'. Would've made good foreshadowing. I think that the public execution of Vercingetorix was not accurate, but I suppose made good tv (as opposed to having him killed in prison after the triumph, which I believe is what actually happened? Someone with better knowledge of Caesar and the Gallic wars might be able to tell me.).
Lots of orating in this episode, which I liked. It was kind of interesting to see the stances that senators/magistrates adopted when speaking, such as Cicero holding both hands out or Vorenus assuming the 'adlocutio' pose. I think Kevin McKidd gave a good performance in the oration scene, conveying well Vorenus' lack of training as a public speaker due to his low birth (even if he did have an excellent voice for it).
The pro-Cato piece that was being circulated amused me, as historically Cicero was supposedly the one who wrote it (rather than Servilia under Brutus' name as seen in the episode) and Caesar did in fact rebuff it with his own pamphlet.
On a final note, I really don't like the portrayal of Pompey's son in this series. There was no Quintus Pompey historically, but there was Sextus and Gnaeus Pompey, both excellent soldiers in their own right (I believe Sextus even had a coin minted for one of his naval victories). I'm guessing Quintus is meant to be a combination of the two, but I was hoping for more than a drunken, angry young man seeking out revenge. Rather, a brilliant soldier like his father with a mind for strategy. I guess it could change in time, though.