Good job on achieving a unique angle! I was wondering just what your goal was with having only the grass in focus and everything else blurry, so I started using my imagination! What comes to my mind is someone peacefully lying in the grass with their mind in a relaxed and carefree state staring blankly at the grass in front of them, oblivious to the rest of the world. Suddenly the peacefulness is shattered by an uninvited and careless biker who is bearing down rapidly as the relaxed person lying in the grass tries to focus and comprehend what is happening 🙂 IF this was the desired effect, the biker should be or at least should appear to be in action. If your desire was to make a portrait of a person sitting calmly on a bicycle, then I would suggest that the biker and his bike be in focus.