Worth bearing in mind the prosecutor also made a speech.
That's not in any press report I've seen, but the jury would have heard it and it's for them to decide which speech they think more of.
They will also have been told that nothing the barristers say is evidence in the case.
Of course, that can cut both ways, but they are told to decide the case on the evidence, so they may choose not to take much account of either speech.
In this case, both barristers are QCs, so the speech part of what is a battle should at least start on a roughly equal footing.
The prosecutor makes his speech first, so the defending barrister - assuming he is light on his feet - has the opportunity to counter it, so in that respect he has an advantage.
The last word goes to the judge in her summing up, which one might think the jury would take more notice of than either speech.