Farrelly’s practice centres around a fascination with forms and textures found in the natural world. These influences are largely drawn from her upbringing in the southwest of England and have evolved from a desire to hoard, assemble, and curate organic forms. A cultivated interest in botany and natural history feeds into her practice and is often at the core of her projects. The work she creates is intended to play on the romantic desire to reconnect with the environment and the landscape, whether these be real or imagined places. Her interest in form and texture often shapes the work and the outcomes, incorporating a particular element of delicacy or tactility. A feeling of ethereality is something she aims for her work to evoke to convey the same sense of wonder when observing organic forms.

Much of her work is made using the lost wax casting process, but other materials such as clays or jesmoite are often utilized in the casting process. The mystical and uninhibited nature that metal can embody, uncharacteristic of its usual state, is what attracts her to this process and maintains her interest in working with wax.