1. Medium: Watercolor on paper

2. Shapes and objects: A landscape featuring a rocky stream or river in the foreground, with water cascading over rocks. There are trees on the banks, with one prominent tree with vibrant autumn foliage in the center-left of the composition. The background suggests a hilly or mountainous terrain. There are various sized rocks in the water, creating a dynamic flow.

3. Colours: Vibrant autumn colors dominate. Golden yellows and oranges for the central tree's foliage. Blues and whites for the water, with touches of reflected sky color. Browns and greys for the rocks and riverbank. Greens and darker tones for the background vegetation and hills.

4. Narrative: This painting captures the essence of autumn in a natural, wild setting. The rushing water over the rocks suggests the constant flow of time and change, while the brilliantly colored tree represents the fleeting beauty of the season. There's a sense of movement and energy in the water contrasted with the stillness of the surrounding landscape. The scene invites the viewer to pause and appreciate the transient beauty of nature, evoking feelings of both excitement and melancholy associated with the autumn season.

5. Original Artist: This landscape style, particularly the treatment of water and autumnal colors, is reminiscent of the work of American painter Winslow Homer. Homer was known for his mastery of watercolor and his ability to capture the power and beauty of nature, especially water scenes. While Mehrdad Fahimi's technique is distinct, there's a similar focus on the dynamic interplay between water, rocks, and surrounding landscape. Homer's watercolors can be found in many major American museums, including the Metropolitan Museum of Art in New York and the National Gallery of Art in Washington, D.C.