Requirement 1, 4

This satisfies requirement one because the background is out of focus/ blurry while the main subject, which is the flower, is focused. The stem of the flower is also focused, which pops the difference of focus from the front subject and background. For this photo, I had to crop out the background so the flower subject in the photo would be aligned perfectly in the middle. I also went to LightRoom, emphasizing the yellow color on the flower.

Done