[3][4] As a child, she watched cartoons like The Powerpuff Girls, Pokémon, South Park, and The Simpsons, inspiring her later works.

[5][4][6] Studio Ghibli films (especially Princess Mononoke), the anime series Revolutionary Girl Utena, Tenchi Muyo!, and Garfield influenced her as well.

The film was praised as being "flawlessly executed,"[17] was shown at the LA Shorts Fest,[19] and resulted in Terrace and Maidagan receiving an Alumni Scholarship Award.

[22] She later described her experience at SVA as a mixed bag, although she learned a lot from online tutorials, her peers, and fellow students.

[7] Her work for Gravity Falls would be her "first professional animation job," where she learned to storyboard, how to handle a crew, and have a clear vision.

"[6] She stated in a 2016 interview that she was waiting to hear back from Steven Universe because she was a fan of Rebecca Sugar after seeing her films at SVA, but they "took too long to reply" so she decided to work for Gravity Falls instead.

[29] The Owl House began development on February 23, 2018, when it was greenlit alongside Amphibia, and premiered on January 10, 2020, on Disney Channel in the United States.

[44][46] The same year, Terrace illustrated an alternative cover for issue 4 of Adventure Time with Fionna and Cake: Card Wars, a BOOM!

[51] The same year, Terrace provided rough animation for The Owl House season 2 episodes "Keeping Up A-fear-ances", "Hunting Palismen", and "Eclipse Lake".

[53] In January 17, 2025, it was announced that Terrace had co-created a series for Glitch Productions, titled Knights of Guinevere, alongside The Owl House writers John Bailey Owen and Zach Marcus.

[54] The Owl House has been praised for its depiction of an LGBTQ+ relationship between the characters of Luz Noceda and Amity Blight, for which Terrace is responsible.

[55][56][10] Though Disney was initially resistant to the portrayal of a queer relationship on the show, Terrace eventually gained their support, crediting the change of mind to her "stubbornness".

[55][57] Terrace told Vanity Fair in March 2021 that she was open about plans for Luz to be bisexual and include LGBT+ characters during the development of the show.

[66] In 2022, she joined other animators at Disney who criticized Bob Chapek's refusal to make a comment on HB 1557, which is often referred to as the "Don't Say Gay" bill.