[3] After that, she did an internship for Tony Award-winning costume designer Jenny Tiramani at the School of Historical Dress in London.

[7] She is also known for sewing in Original Practice, the art of crafting clothes using historically informed methods and materials.

[2][8] A significant area investigated by Banner has been the accuracy in reproductions of historical clothing, for example in films like Little Women (2019) and Beauty and the Beast (2017).

[10] On her channel, Banner is an active spokesperson against the fast fashion industry, highlighting its environmental devastation and poor labor practices as reason for people to do what they can to abstain from buying clothes from such brands.

In place of consuming fast fashion products, Banner has described her own move towards limiting her number of wardrobe pieces to sustainable and long-lasting garments, many of which she has created herself.