If you're looking for animated series that cater to adults and offer unique storytelling and art styles, I have a few recommendations that might spark your interest.
First off, check out "Undone." This series combines live-action and rotoscope animation in a stunning way. It tells the story of a woman who discovers she has the ability to manipulate time after a traumatic incident. The themes of mental health and existential exploration are deeply resonant, and the art style gives it a dreamlike quality that you won't find elsewhere.
Another gem is "The Midnight Gospel." Created by Pendleton Ward, the mind behind "Adventure Time," this series features an unusual animation style and dives into some profound philosophical conversations. It follows a spacecaster who travels to different worlds while interviewing beings about life, death, and everything in between. It's visually gorgeous and can be surprisingly emotional.
Lastly, give "Tuca & Bertie" a shot. It's an animated series that explores the friendship between two bird women in their 30s, tackling themes like mental health and relationships with humor and heart. The bold color palette and whimsical art style make it an enjoyable watch, and the writing is sharp and relatable.
Each of these series has its own distinct flavor and depth that sets them apart from typical animated fare. They tackle serious themes while maintaining a unique storytelling style, making them perfect for adult viewers seeking something different.