new overwatch character, margaret thatcher, the iron lady, portrait bust, hair, evil eyes, margaret thatcher, big hair, mech suit, hammer, art by lois van baarle and loish and ross tran and rossdraws and sam yang and samdoesarts and artgerm and saruei and disney, digital art, highly detailed, intricate, sharp focus, trending on artstation hq, deviantart, unreal engine 5, 4k uhd image