I really enjoyed using the filter tool for several of my landscape photos. It's very simple to use. Go to the tool bar at the top of the page that says "filter," it's really that easy. I then choose filter galleries where I was able to chose from artistic, bush stroke, distort, sketch, texture etc to add attributions to my photographs. Here is my original photo:
Under the artistic filter I found a "film grain" application I liked. When I applied this attribution to the photograph it remained me of these spray painted portraits a street artists was creating in Mexico.
Filters are a great way to alter the mood of a photograph. You can put color filters over photographs as well. For example, we can put a dark or grey filter over this photo to change the time of day. This can also be achieved by going to the top tool bar and selecting "image" then "adjustments." Under this tab you will find "brightness/contrast." Here is this photo as if it were taken at night: