Character design is crucial. You want your characters to be visually appealing and distinguishable. The story is also key. It should have a clear beginning, middle, and end, with interesting plot points. And the scenes need to be well - crafted. They should set the mood for the story. For example, a spooky story would need a dark and eerie scene.
When making a Daz3D Visual Novel, you must consider the following elements. Firstly, the characters' expressions and body language. This can convey a lot of emotions without using words. Secondly, the pacing of the story. If it's too slow, the player might get bored. Thirdly, the use of music and sound effects. They can greatly enhance the atmosphere. Fourthly, the layout of the text on the screen. It should be easy to read. And finally, the overall theme of the Visual Novel. It should be consistent throughout the whole work.