I am a huge fan of worlds that have cool alien features, like people riding on great reptiles, mushrooms the size of trees, big glowing insects, and so on. I also really like stories that are journeys into increasingly stranger and more dangerous underworlds. The problem is that the former is working contradictory to the later. When the normal everyday world is already full of strange sights, it's difficult to create a visible contrast with weird supernatural realms. Readers are more likely to not notice the difference or not understand why characters react very diferent to things that seem equally new. I am so married to my dinosaur forests and mushroom forests that when in doubt, I will stick with those and rather have a less weird supernatural story. But I still kind of want to have both, at least to the degree that it's possible. What can I do with the exoticness of the everyday setting to have it interfere less with the strangeness of the truly supernatural? I think for a start, it might be a good idea to keep the exotic elements relatively mundane in their biology and physical appearance. Dinosaurs are an unexpected sight in a human civilization, but we can understand the, as big animals like elephants or tigers. A mushroom tree is something you don't see in reality, but we all know mushrooms and we all know trees as something boringly ordinary. I think mabe people would get used to these being ordinary things very quickly. And in turn I might keep the fields of glowing moss and mushrooms and huge swarms of glowing insects for scenes that are set in the fully supernatural world. The same thing with talking nonhuman creatures. A dino-horse would be just likena horse, but a talking snake would only be in the supernatural realm. But I am not sure how far that would actually hold.