2005-2008 saw her move forward as she modeled for promotions for Libra/Carefree, Northland Rugby, Flava, Hauraki, and D1NZ. She then went on to be the covergirl and feature model for the October 2008 issue of New Zealand Performance Car.
2009-2010 saw her take on more modeling gigs, being featured in a TV commercial for ASAP Glass as well as a covergirl and feature model spot on Western Australian Fishing Magazine and a covergirl spot on the Metermaids Calendar 2009.
From there, she participated in the Wild Orchid Australia Bikini Parade, which was shot for Zoo Weekly Australia and Unit Riders Clothing. She began to pick up steam and shot a Winter Range for the Unit Riders Clothing Catalogue. She was then featured in Zoo Weekly's "2011 Best Bums," and then "50 Sexiest New Aussie Models." She continued her work with Unit Riders Clothing, shooting for their summer catalogue.
In August 2011, she was the covergirl and feature model for Australian Swimsuit Edition. She was also featured in the music video for BeatKamp. Her work with Zoo Weekly also continued, as she became a finalist in Zoo Weekly's Search for a Covergirl 2011, which was a two page feature. She went on to become a Zoo Weekly quarterly feature spread, and then in January 2012, she was the Zoo Weekly covergirl feature.
She is currently in the process of shooting with The GC, a New Zealand reality series that follows a group of 9 young Maori as they live it up on "Australia's favourite playground, the glittering Gold Coast." Rosanna stars on the show as herself along with her boyfriend Zane Houia, as they live their lives. The show draws parallels with the American reality series, The Jersey Shore.