Create a striking split-screen poster featuring a gym-themed 'Winter Arc.' The left side showcases a muscular man, with a bold red background representing intensity and power. The right side features a muscular woman, set against a vibrant yellow background symbolizing energy and focus. Both characters are mid-workout, highlighting their strength and determination. Include dynamic English text that emphasizes phrases like 'Winter Arc,' 'Strength Unleashed,' and 'No Off-Season.' The text should be bold and modern, complementing the color scheme. Ensure the design is visually balanced, with sharp contrasts and a motivational vibe
