England captain Dylan Hartley hailed a monumental effort from his side after they completed a historic 3-0 whitewash on Australian soil with a 44-40 victory in Sydney.
In a thrilling series finale, Australia scored five tries to England's four - but Owen Farrell's kicking ultimately proved the difference.
The Saracens playmaker added 24 points through six penalties and three conversions, missing just one of his 10 shots at goal - with Dan Cole, Mike Brown, Billy Vunipola and Jamie George crossing for the tourists as Australia suffered a first 3-0 series defeat since 1971.
"We are very happy with the tour," said Hartley. "We put a lot of pressure on ourselves to come out and play the perfect game and I think we can all agree it wasn't our perfect game today.
"We put everything into it, it was our last 80 minutes of the season and I am proud of how the guys conducted themselves the last three weeks. We have made some history.
"We prepared well and we were confident coming into this."
He continued: "We have scored 44 points and not played the perfect game yet, so there is still a lot to work on. We can all be proud of what we have achieved Down Under. We will enjoy this for now.
"The boys have got five weeks off now and when we meet up we will set new goals and go again."
Australia captain Stephen Moore admitted his side had been second best throughout the series.
"We've got to keep that belief in the team," said Moore. "To England's credit they deserve it.
"They've played well. They deserve to win the series. They've played well all year."