How to Create Better AI Doodles: Practical Prompt-Writing Tips

Consistency: The Secret to Professional Video Stories

Anyone can generate a single appealing AI image. The real challenge emerges when you need to assemble a 15-slide whiteboard presentation where the protagonist looks consistent, the line weights match, and the color palette feels cohesive throughout.

In this guide, we share the exact production rules used in the Ai Doodle Studio to ensure that every scene looks like it was drawn by the same master illustrator.

Rule 1: Adhere to a Unified Palette (The 3-Color Principle)

Editorial illustrations rarely use the entire rainbow. Instead, they rely on a deliberate primary ink color supplemented by two or three harmonized accent tones:

• Base Ink: Deep charcoal or warm black (e.g., #1B1B1B) with smooth, rounded stroke caps.
• Soft Warm Accent: Terracotta Red (e.g., #B75B48) for warmth, focal emphasis, and energy.
• Natural Ground Accent: Sage Green (e.g., #B2C7B6) for foliage, stability, and calming accents.
• Highlight Base: Soft Ivory (e.g., #E8ECD6) for soft paper reflections and light surfaces.

By restricting your entire video to this harmonious palette, your slides will look polished and intentional.

Rule 2: Balance Line Density and Whitespace

In vector animation, less is often more. If an illustration contains 200 tiny overlapping strokes, the drawing animation feels sluggish and chaotic. Aim for:

• 8 to 35 Primary Strokes: Enough definition to capture personality and depth without overwhelming the eye.
• Ground Shadow Hatch: A 4 to 8 line diagonal pencil hatch grounding the character anchors them in physical space.
• Pointillist Stippling: 6 to 12 scattered dots create organic texture without adding heavy file weight.

Rule 3: Maintain Character Continuity with Reference Sheets

If your story features a recurring hero—such as a developer, doctor, student, or animal mascot—do not re-prompt their appearance from scratch on every slide. Instead:

1. Generate or select a Character Sheet establishing their distinctive visual anchor (e.g., distinctive bowler hat, glasses, or scarf).
2. Reuse the same character across standing, explaining, thinking, celebrating, and pointing poses.
3. Use the AI Character Variations tool to lock in their aesthetic DNA across every scene.

Rule 4: Pace the Animation with Spoken Narration

A whiteboard video should never draw in silence while the voiceover pauses, nor should it rush through 10 drawings before the speaker finishes their first sentence. Always sync your slide duration to narration pace (typically 140–160 words per minute) to keep viewers engaged from opening frame to conclusion.