Wales ran in 10 unanswered tries as they thrashed Hong Kong 65-0 with Jasmine Joyce, Bethan Lewis, Sioned Harries and Lisa Neumann crossing twice while Gwen Crabb and Siwan Lillicrap also crossed the whitewash.
On top of the tries outside half Robyn Wilkins also kicked 15 points from the kicking tee.
Wales face Canada at the Arms Park on Saturday and Phillips is expecting a bruising encounter against a side ranked fourth in the world.
“This victory was another positive step forward,” said Phillips.
“We’ve shown that we’ve learnt our lessons and got better. Even though we are on a winning run I truly believe we can get a lot better but these past two weeks have been a step in the right direction.
“Of course I am delighted to have scored 10 tries but it’s also a big bonus to not concede any points because we’ve worked very hard on our defence in training. I just think our general level of belief and our skill set is excellent at the moment.
“But I think Canada will be our toughest test of the autumn by far. They are going to be very physical similar to what South Africa were but probably more so.
“Our two wins against South Africa and Hong have been pleasing so we’ve got the momentum going for the biggest challenge of the autumn on Saturday against Canada.”
Wales Women’s captain Sioned Harries has been one of the standout performers of the opening autumn wins against South Africa and Hong Kong.
And the 27-year-old is delighted with the progress being made by her side as Wales target a clean sweep this autumn.
“We are delighted with this victory especially after last weekend’s win over South Africa,” she said.
“The girls put a good shift in and we’ve built some real depth with girls like Manon Johnes and Gwen Crabb getting capped. Canada are on of the best teams in the world and having faced them in the past we know how physical and dominant they can be.
“But I think our win over South Africa will stand us in good stead because we are expecting a similar challenge.”
