To create an illustration of a Rat Fink-style character riding a chopper with a sheep's head, please follow these specifications:

1. Theme/Concept: Rat Fink riding a chopper with a sheep's head.
2. Characters/Elements: Include the iconic Rat Fink character design, a detailed chopper motorcycle, and a sheep's head with exaggerated features.
3. Color Palette/Style Preferences: Use vibrant colors typical of Rat Fink art, such as greens, purples, and yellows, with bold outlines.
4. Text/Slogans: If desired, include a catchy slogan related to the theme, such as "Baa-rnstorming on Two Wheels!"
5. Size/Format Requirements: Specify if you need a standard size (e.g., 8x10 inches) or a specific format (e.g., PNG, JPEG).

Please provide any additional details or preferences to refine the illustration further!