Design my windows phone and store app (XAML)

I have completed my first version of a windows phone application, and it also has a version for the Windows 8 Store as well. Functionally it works great but it is very plain. I'm looking to jazz it up and make it look sleek, metro, and nice. There are 3 views that need to be styled with an attractive layout and graphics. This is written in C#/Xaml so you need to be able to work in that environment, while being able to create any design elements (graphics, illustrations, logos, etc). This is a PERSONAL, non-profit making project, so I do not have much of a budget, and am not really looking for a big-budget professional or a high-profile design shop. Rather, I'd ideally like to work with a hobbyist like me who is looking to refine their skills on a real-world project. However, if this goes well and your price is right, I have a few other apps I've completed and am working on that could use a face lift, as well as several more (paid!) apps in development, so there is definite opportunity for more work after this! Send me a summary of your experience and approximate budget to style up a finished app, and I'll get you a link to the app so we can have a conversation!