I was also impressed with the flashback scenes of Pierre's drunken night with Anatole and Dolokhov - sexy and honest without being over the top. The suggestion of Anatole's incestuous relationship with his sister Helene, played by the gorgeous Tuppence Middleton was also very well handled, again, just enough without gilding the lily. And speaking of Lilies, Lily James was perfect as Natasha, striking just the right note as her young, naïve self.
The action scenes involving Nikolai's ill-fated cavalry charge and Andrei and his embattled cannon emplacement also deserve high praise. They were powerful and realistic and I feel the contrast between the brutality of the war scenes and the Machiavellian goings-on in the St. Petersburg salons was very well done - the juxtapositions and timings of scenes were just right.
In summary, everyone was brilliant. The script was fantastic, the story well told so far and, of course, the authentic Russian locations took the breath away.
Full marks to everyone. I can't wait for Episode 2!