Simplify the following text for a Grade 13 native English-speaking person.
Original: Film critics appreciated the first season of Avatar : The Last Airbender because it attracted the attention of `` an audience beyond the children 's market with crisp animation and layered storytelling . ''
Simplified: Film critics appreciated the first season of Avatar because it attracted the attention of `` an audience beyond the children 's market with crisp animation and layered storytelling . ''