"Produce an inspiring T-shirt graphic that combines the iconic skylines of Toronto and Karachi in a harmonious blend. Highlight the majestic CN Tower and the Rogers Centre from Toronto alongside the distinctive architecture of Karachi's skyline. Infuse this design with a sense of unity and cultural fusion, symbolizing the connection between two unique cities. The design should be visually stunning and suitable for a T-shirt that celebrates the diverse beauty of these two cities