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."
Speaking with the local media before the Gloucester team set off on the long trip north to Newcastle, Director of Rugby David Humphreys discussed his team selection and stated that Friday night's meeting will be a challenging one.
Speaking to the local media on Thursday, Matt Kvesic was looking forward to the trip to Newcastle Falcons, and the captain is looking to lead from the front with plenty for the Cherry and Whites to work on.
Gloucester saw a 12-0 lead overturned by Harlequins on Friday night as the visitors ran out 22-15 winners. After the game, Director of Rugby David Humphreys spoke about missed opportunities on the night.
Speaking to the local media on Thursday, James Hudson explained his excitement for tonight's game with Harlequins and that he is backing the Cherry and White squad to impress during the next set of Aviva Premiership games.
Despite a dream start at Kingston Park, scoring a try after just 26 seconds, Gloucester couldn't capitalise against a dogged Newcastle Falcons side. Too many penalties were conceded and too many errors made as the Falcons prevailed 20-10.
There are three changes to Gloucester Rugby's starting line-up for Friday evening's Aviva Premiership fixture away at Newcastle Falcons. Steve McColl will make his first Premiership start for the club.