“To abstract is to draw out the essence of a matter. To abstract in art is to separate certain fundamentals from irrelevant material which surrounds them.” ~ Ben Shahn
Have you worked this one out? It is the reflection of reeds on the bank of the river. I changed the colour tones and removed some of the image that gave it context and so you are left with just the wiggly rippling reflections of something that in fact stood tall and straight.