messy lines, unrecognizable trees, uninspiring foliage, lifeless forest floor, distorted shadows, disproportionate elements, lack of enchantment, confusing composition, dull colors, overcrowded scenes, lack of detail, jumbled branches, unnatural lighting, flat and uninteresting, incomplete sketch, lack of depth, poorly executed shading, unengaging atmosphere, generic forest, awkwardly placed creatures, disfigured flora.