Textures and patterns can occur naturally in nature though it should not be limited to nature alone as it also occurs in the physical objects. Textures and patterns occur in many objects such like the rusting of a steel plate. The uniformity of the rusting will create different textures and patterns on the same plate.
Pattern are obtained from the repetition of a single element. In nature and in the universe, there are many patterns that are formed by the elements of nature. For example ripples that form in the desert sand when winds blow creating near uniform and artistic designs. Whereas for textures, this is the way the artist would portray his piece of work in such a way you get the sense of how it feels through sight as well as through the actual touching.
If you are an enthusiast of textures and patterns then you have to look no further as we possess a good range of posters to choose from. A poster of the desert ripple or even a poster of the milky way of the universe would be various choices to decorate you room, office or house with. A poster of textures and patterns is an excellent choice to those who like doing multiple decorations in one room as they blend in well with each other.
You can also get an art print and a canvas print if you are not so keen on using a poster. The former are much more formal and thus would fit right well in places like offices. Also a piece of framed art of textures and patterns will work great with a much more formal scene.