Humanity's tastes evolved over time past using cave paintings for wall pictures, but sometimes things don't seem like they've changed that much. Popular decorative art continues to include floral and natural scenery for instance. The picture is a good deal clearer though.
Wall pictures come in both single and multi-frame forms that allow them to fit into a variety of spaces. Diverse subject matters ensure there is something for everyone even if they don't like nature. Spice up an empty wall with an artful picture.