UFC, fight night, poster, background, dark tone, bold font, main event, champion, Conor McGregor, intense gaze, beard, tattoos, ripped physique, punching gloves, fighting stance, Las Vegas, T-Mobile Arena, crowd cheering, spotlight, dramatic lighting, high contrast, 3/4 composition, cinematic feel, dynamic pose, explosive energy. Please let me know if this meets your requirements or if you need further adjustments!