Design some slick App mockup screens!

Hi freelancers! I'm working on an exciting project, which involves the design of a super-slick, super-simple, user-friendly Android app. Where I need your help is in designing some of the main UI screens. This relates to layout, iconography, typography, and colour schemes. I have an initial rough mock-up of how one screen of this app may look (attached). I'm looking for you to take it to the next level, and ultimately design 2-3 additional screens using the same theme. *** There may also be additional work available following this project. To select the appropriate Freelancer, the process will be as follows: 1) Review this project detail carefully. E-mail me with any questions. 2) Download the attached "sample" screens (alternative versions of the same screen) 3) Submit a sample of how you think this screen would look according to your design insights (JPEG) 4) Along with the sample, provide your $ bid for the project and any other relevant information 5) I will select the individual with the best combined bid $ and sample JPEG 6) Once the project has been awarded, I will send you the details of the other 2-3 screens that need to be designed 7) The final deliverable will be the 3-4 final full-resolution screens in PSD format with layers Additional notes: * The colour scheme is currently orange/light grey, however this should be changed to a green/dark grey combination. You may consider additional colours. * The layout generally covers what is required, however feel free to experiment with minor adjustments to the layout. App background: * The app will be used to provide detailed vehicle trip information to the Smartphone user. For example, it may show statistics or data on average trip time or distance driven in a car. More information will be provided after project award. As mentioned, please read these instructions carefully. Only serious and communicative bids will be considered. Good luck! Daniel