Anime is a production style before it is an aesthetic. It was shaped by limited animation budgets, which meant every frame had to communicate with as few marks as possible. That constraint is still visible: a clear outline, two or three shading tones instead of a gradient, and detail spent on faces and skies rather than spread evenly across the frame.
So the look comes from subtraction. Texture is thrown away, shadows become hard-edged shapes rather than soft falloff, and colour is laid down flat inside the line. What survives is silhouette and expression, which is exactly why anime characters still read at thumbnail size when a photographic render turns to mush.
The one place anime spends generously is the background: painted clouds, heat haze, the horizon at golden hour. That contrast between flat foreground figures and a lush painted sky is a signature worth naming in the prompt, because Artlist will otherwise treat both layers the same way.