Simple and cute Nordic-style flat illustration aesthetic; a girl wearing headphones enjoying music while reading a book; an open book and a pen holder on the desk; a small cat figurine; a rounded, simple face; uniform, thick black line-art style lines; a minimal composition that makes use of negative space; a gentle, approachable mood; a colorful, bright palette using lemon yellow, coral pink, sky blue, mint green, caramel brown, and off-white; flat colors; picture-book warmth; loose, cute deformation; a clean background.