Create an extremely simple and elegant logo for 'Global Harmony,' a company that hosts AI-powered pet image contests and aims to foster a harmonious world where humans, animals, and AI coexist. The design should be minimalistic and sophisticated, featuring clean lines and a refined color palette. Use subtle symbols or abstract shapes to represent unity and balance, ensuring the logo conveys the company's mission of harmony and integration with utmost simplicity. --ar 1:1 --niji 6