Design-layout ideas for a windows interface

We have a system that works under windows, we are looking for new ideas to have a better layout design. We'll pay $30 to some selected designers, (with good feedback), who are willing to provide a sketch on how they would have this same application much more usable, more nice/professional/updated looking. We'll send more detailed info before selecting providers. If you don't have feedback but think you are very good at this, contact us, we'll send you the info in advance so you can provide a draft sketch. Selected provider may be also eligible to redesign other parts of our systems.