Try using the filter Render Lighting Effect and try altering the appearance of the light direction on the bear. That and the mushrooms stand out the most as not fitting in properly into the lighting scheme. The mushrooms are so far off you might want to scrap them and replace them. Also the bird could use some key light. The childs feet should be more in shadows. The wings works well, but try to shadow them lower where the child's body would be blocking more of the light. Fun image!