Cozy Autumn Couple Illustration in City Street Scene

I'm looking for a cozy storybook illustration, hand-drawn with a vibrant pastel palette. Think colored pencil with visible, slightly rough strokes and clean, organic line art, possibly with subtle watercolor washes for texture. The colors should be warm and friendly, high-key bright with enhanced but natural saturation and soft contrast, ensuring a non-realistic, no photo texture finish.

The lighting should be flat yet detailed, with minimal shadows and soft highlights. For characters, use semi-cartoon realistic proportions, simple facial features, dot eyes, and small smiles, all in a classic storybook style. The overall mood should be cheerful, warm, and friendly, capturing a children's book or lifestyle sketch vibe. High clarity is key.