Creating colours was a major undertaking for Renaissance painters. Colours that we take for granted had to be handmade from minerals, such as azurite and malachite, and plants, such as saffron.
A small gecko, verdant foliage, a fragment of a Rita Angus-like landscape and an industrial building provide a backdrop to an angel probably inspired by Piero Della Francesca's 'Madonna and Child Attended by Angels' painted in 1460.