Ambrosine is a London-based writer, performer, and dramaturg with a sharp, distinctive voice. She has premiered two acclaimed solo shows at the Edinburgh Fringe Festival, earning ★★★★ reviews and praise from The Times, who described her as a "talented performer" with a writing style full of "comically quirky edginess." In 2025, Ambrosine was shortlisted for the Female Pilot Club in association with BBC Comedy, and she reached the finals of both the prestigious ScreenCraft Fellowship and Final Draft’s Big Break Screenwriting Competition. Ambrosine trained and performed with The Groundlings in Los Angeles for over seven years, completing their invitation-only Writing Lab and Advanced Writing Lab. During her time there, she developed and created the original mockumentary miniseries Wombat Talent, which streamed on Funny Or Die. Her collaboration with UNIT9 Films led to the award-winning short film Snare, which took home Best Motion Picture at IndieFlicks Short Film Festival and was an Official Selection at the London Short Film Festival, Ozark Shorts, and Aesthetica Short Film Festival (ASFF).