Android App UI Graphic Design

I’m building an Android application that centres on secure user authentication and I need a designer to craft the complete visual experience. Your task is to translate my rough sketches and flow diagrams into polished, production-ready UI assets that feel native to Android while maintaining a distinctive brand style.

The core scope covers:
• High-fidelity mock-ups for the login, sign-up, forgot-password and welcome screens
• A cohesive colour palette, typography set and icon pack that aligns with Material Design
• Exported PNG/SVG assets plus the original layered source file (Figma, Adobe XD or Sketch—whichever you prefer)

Acceptance criteria:
1. Screens render correctly on common Android breakpoints (360dp, 411dp, 480dp).
2. All text styles, colours and spacings are documented inside the design file for easy hand-off to developers.
3. Icons and illustrations are delivered in both light and dark-mode variants.

I’m ready to provide brand guidelines and will give quick feedback during iterations, so we can move swiftly from concept to sign-off. If this sounds like a fit, send through a link to similar mobile UI work and your estimated turnaround time.