Mitjili’s signature style is defined by the Watiya Tjuta (desert oak/spearwood trees), which represent her father’s Tjukurrpa (Dreaming) from Ilyingaungau in the Gibson Desert. Although it was her father’s story, it was passed down to her by her mother through traditional sand drawings, resulting in a unique female interpretation of the spear-making narrative.

This Dreaming is shared with her brother; both held the right to paint the sacred site at Ilyingaungau, where ancestors gathered to prepare for battle. While her brother famously depicted the straightening of the spears (kulata), Mitjili’s work focused on the trees themselves, using bold colours and structured patterns that set her apart within a family of legendary artists.