Create a futuristic robot character with a strong, muscular design. The robot is predominantly blue and gray, featuring sleek armor plating and illuminated lines to suggest advanced technology. Its right arm wields a large energy sword, while the left arm is slightly raised in a confident pose. The backdrop showcases a distant, high-tech city skyline under a dramatic, cloudy sky with deep hues of orange and purple. Adjust the facial features of the robot to have a more streamlined, angular head with a glowing visor, omitting any distinct branding or logos.