I am having difficulty imagining exactly how the characters looks like, how the architecture is, how the forest looks like and so on. Those are details that I skip when reading others works so I don't put a lot of effort when I write it myself. I just imagine a plain old forest, typical medieval cloths and plain medieval western buildings. Except when it is has no real world equivalent I have to be creative, but even then I just write that it is slick and spartan structures. Not very imaginative at all. I try to sit down and really think about it by sketching it out myself and searching on google for inspiration, but my sketchingings sucks. Do I need to hire an artist or can I simply skip being explicit about the details?