Android app for a sales team

General information for the app: app for sale guy and management Kind of development: New app from scratch Description of requirements/features: Sales person can add client inform and quote status. And check meeting and appointment detail. Planing chat option and other things in the next enhancement. I need to start the project as soon as possible. The one who provide a good design for 2 or 3 screen will get the project. I myself tried a sample design to explain the developer, Please find that in the attachment. Extra notes: