Graphite Study and decision making.

When I start a commission project, I often create a preliminary sketch. Here, my client provided several photographs, with lighting so interesting, we could not agree which was our favorite. Hence, the vertical triptych idea came to be. This drawing, though time consuming, was critical in making  compositional decisions. It also allowed practice rendering. And as much as I love the concept, the piece ended up too big for my client, who preferred to go with the central cat shown in the sketch. Good thing I didn't just jump into the project without exploring options first. Now I'm left with this 11x 28" graphite on watercolor paper, just waiting for a frame.  Should I make the investment?