The text should be a different collor and raised slightly. I dont really like how theres a graphical BG in the middle and blends on the sides. It would have been better if it was all blend and the middle cut, or all graphical BG. Nice work though, good-tutorials helped.
Use the marque tool (its the dotted line square), click on it and hold your click. Release it on Single Lint tool. Click a point on your banner. Right click the dotted line that will form and go to stroke. Make sure Feather is set to 0 px (that will be on top below Filter and View).