"Create a powerful and intense image for a motivational YouTube video thumbnail

"Create a powerful and intense image for a motivational YouTube video thumbnail. The image should feature a close-up of a person's face showing intense determination and focus, with furrowed brows and piercing eyes. The background should be a dramatic and contrasting dark color, such as deep blue or black, to make the subject's expression stand out. Include dynamic elements like a subtle lightning bolt or burst of energy around the person's head to symbolize inner strength and power. The person should have beads of sweat on their forehead, indicating hard work and perseverance. The overall tone of the image should be bold, dramatic, and inspiring, conveying a sense of overcoming challenges and unleashing inner potential."