The opening 63-3 win over Italy was a strong start for the English but Moriarty knows that there were aspects of the game that they must improve on leading in to the clash with Australia on Friday (KO 6:35am BST).
"There were parts of the game against Italy where we were struggling to score, and to be honest we left a few tries out there. It was a tough physical game as expected.
"We've watched the Australians in a few warm-up games they've had, as well as the game they had against Argentina on Monday and they're quite similar to us in the way that they play. So we're expecting a really tough game but I really can't wait for it."
Gloucester travel to Oyonnax for the second round of the European Rugby Challenge Cup on Saturday evening, and Director of Rugby David Humphreys is expecting a big test from the French side, feeling that their league position doesn't reflect their recent performances.
Speaking exclusively to Gloucester Rugby TV, Matt Kvesic explained that his decision to extend his contract at Kingsholm was a simple one and that he was hugely excited for the future in Cherry and White.
Speaking after the 55-0 win over CA Brive, Jonny May told GRTV that he's delighted that the team's hard work is starting to pay dividends but was equally happy for his friend and team mate, Charlie Sharples, on what was a big night for his fellow winger.
Speaking to the local media this week, David Humphreys insisted that Gloucester are looking forward to kicking off the new European Rugby Challenge Cup against Brive on Thursday evening, although an unfamiliar opponent and a five day turnaround will pose a challenge.