The Dragon Maid manga is indeed still ongoing. It has a dedicated fan base and the creators are committed to bringing more exciting content. However, the release schedule might vary from time to time.
In the manga, the art style plays a huge role in defining the mood and atmosphere. The artist can use different panel layouts and shading techniques to enhance the story. For example, when there's a tense moment between the dragons, the dark shading and close - up panels can create a sense of drama. In the light novel, it's all about the written word. The author can use different literary devices like metaphors and similes to describe the dragons' powers and personalities. For example, the author might describe Tohru's cooking as a 'fiery tempest of flavors' in the light novel, while in the manga it would be shown through pictures of the food and the reactions of the characters.