Prompt to create App designs

Create a premium mobile app UI showcase in a 5.5:3 landscape composition featuring four iPhone mockups evenly spaced on a clean warm-white background. App name: Promptar Purpose: AI prompts and business tools for creators, marketers, founders, and entrepreneurs. Design Style: Modern editorial product design inspired by TinyTable, Playground, Notion Calendar, and award-winning Behance/Dribbble mobile case studies. Avoid glassmorphism entirely. Use: • Flat vector illustrations • Bold abstract botanical shapes • Memphis-inspired organic graphics • Bright saturated color blocking • Premium editorial typography • Large playful decorative illustrations integrated into the UI • Rounded cards and soft corners • Minimal shadows • Clean grid system • Strong visual hierarchy • Plenty of whitespace • Delightful micro-interactions implied through UI • Premium startup branding aesthetic Color Palette: Deep forest green Royal blue Warm cream Coral pink Lime yellow Terracotta Bright leaf green Typography: Large elegant serif headlines mixed with clean modern sans-serif body text. Bold oversized titles. Minimal text. The mockup should contain ONLY these four screens: 1. Welcome Screen • Large illustration filling the lower half • Big Promptar logo • Tagline: "Better prompts. Better business." • Two large rounded CTA buttons • Premium onboarding aesthetic 2. Home Screen • Greeting • Search bar • Quick actions as colorful square buttons • Featured prompt packs • Trending prompts • Bottom navigation • Bright cards with different accent colors 3. Product Detail Screen • Full-height editorial illustration • Large title • Prompt pack information • Features checklist • Bright CTA button • Decorative graphics extending beyond card boundaries 4. AI Generator Screen • Large heading • Input card • Tone selector • Platform selector • Generate button • Decorative botanical graphics around the edges Illustration Style: Editorial vector artwork similar to premium lifestyle apps. Large leaves, flowers, abstract blobs, geometric shapes, playful objects, simple shadows, thick colorful forms. Composition: Looks like an App Store feature image or Behance presentation. Every screen has its own dominant color while maintaining a cohesive design system. No gradients. No glassmorphism. No realism. No photography. No device reflections. No floating UI. No 3D icons. Only crisp flat vector design. The final result should look like it was designed by an award-winning product designer for a modern startup launching on Product Hunt.