Nice space. We shape our plants very similar. If you have some walls/partition at least as high as the light, or hang some white material around the edges of the grow you can bounce/reflect that light back into where the plants are instead ot it spilling out sideways. A little more efficient use of the light. I had a space that was a corner and the walls were painted white. For the open sides I just hung some white fabric panels. I used some thin rope coming down from the ceiling. I wrapped the fabric around a long strip of plastic to hold the fabric fairly flat, then clamped the rope to the fabric panels with those common little metal clamps. It worked good and I liked being able to push it aside or wrap it up on top of itself to get it out of the way if I needed to work with the plants. Many grow lights are intended to be used this way, with reflective walls to achieve a more even coverage but not all. I switched to a grow tent because pest risks and contaminants like dirt and hair are decreased with them, but the trade off is heat build up. Gain something, lose something. Gain something wanted, gain something unwanted... you know how it goes.