A woman in a green cardigan daydreams over coffee at a café

Minimal watercolor postcard illustration of a young Korean woman sitting at a café table drinking coffee while quietly daydreaming. Simple rounded cartoon character design, relaxed posture, slightly oversized cardigan, soft short hair moving gently. Sparse line drawing with delicate sketch marks. Background reduced to a few loose window lines and tiny plant shapes. Large empty white areas around subject creating breathing space and elegant simplicity. Muted sage green, warm cream, dusty brown palette.