Software User Interface Desigining

I am seeking the services of a designer who has had extensive experience in designing User Interfaces for software applications is Visual Studio I currently have 4 software applications where I want to upgraded the UI of each application. The current UI designs are small and look cheap, and is devaluing the software as a whole. However, initially I only require ONE design set to be done. If this project works out successfully, there will be three other designs to follow. I have attached a series of screenshot for one of the current software app. to guide you in what is required Specific Requirements a....Designs MUST be created and the files / dialogs to supplied in Visual Studio (2010 or higher). The designs will be used by programmers to integrate into our software application. b....The budget for this project is $150. Don’t bother bidding if you cannot meet that budget figure c....You must be prepared to provide one mock up for testing and approval of your design by our programmers d....You must provide examples of actual UI designs that you have done in the past (NOTE: I am not interested in see any other designs you have done, only User Interface designs) e....If accepted as the successful bidder , you will be required to design an initial prototype for approval and acceptance prior to doing the designs for all screens.