Design part of iPhone app UI

Hello, We're looking for a designer who can make iPhone app UI. You can make just one part of whole UI. just change that part more elegant and natural to see. for example, there is a part to display user's icon and have to show it more naturally. it is like making frame of user's icon. and also want to check whole design of app. bid is fixed as 30 USD because it is very simple job. and if you do excellent job i will give you a next project. please send me your portfolio. Thanks