Omiya's unrestrained expression sees her experiment with themes and colour schemes without fear or hesitation. Her lines are bold, forceful, and impulsive; as if her movement is that of a child, reminiscent of Jean Dubuffet and art brut. Her paintings generate an overwhelming sense of kindness, sensitivity, and hope. Anything has a chance to be the main subject, be it people, animals, flowers or furniture. Omiya's work, first and foremost, strives to make people happy; reflecting her view of the world as a dynamic wonderland filled with colours and objects.