i don't know how to use photoshop, so i just made one in paint. either take a really big picture and crop it to approximately the right dimensions (800 x 100 pixels - but 팬팝 will automatically resize it if it's too large), 또는 paste a bunch of smaller pictures together so that it fits the right shape. this is what i did for the Defying Gravity club that i created (you can check it out if you'd like) but i don't know how to just create a regular banner that 당신 don't 업로드 directly. good luck! hope this helps a little. :)