Mills, who now lives in Eltham, is exhibiting a suite of vibrant, large-scale oil and aerosol paintings on canvas, exploring dynamic colour fields and compositions with a hint of surrealism.
The other exhibition is Redecorating Taranaki, a project focusing on ideas around creating new community taonga.
Jewellers Jennifer Laracy (Pungarehu) and Sam Kelly (New Plymouth) asked locals for their ideas, and In 2019 they held a series of community workshops, including many at South Taranaki LibraryPlus branches, inviting people to talk about and design a medal for someone they think deserved to be honoured.
Taking inspiration from stories and objects in the Puke Ariki museum's storeroom, Laracy and Kelly created 10 new awards that represented what people valued in Taranaki today.
The Diversity Award, studded with Swarovski Crystal, celebrates the art of welcome and the vibrancy others bring, while the Taranaki Whānau Trophy is in recognition of the role models and the ancestors who have come before.
Other values represented by the new awards include creativity, friendship, and sustainability.
The exhibitions, which opened on Tuesday night, run until March 31.
Lysaght Watt Gallery is located at 4-6 Union St, Hāwera (beside the Hāwera Town Square), and is open Monday to Friday 10am–4pm, and Saturday 10am-1pm.