A Bobcat and an Interesting Cropping Question

When I do an ACEO I don't typically work on pre-cut paper.  Instead I work on a small piece of  quality drawing paper.  I work a bit beyond the expected edges, then find the best place to crop it to size.

So on this one I began as usual, but before I got very far I decided where I would crop the face and worked from then on just in that area.  In fact, I taped a little frame made from an index card over the drawing as I continued to work.

Then at the end when I took the frame away I liked the effect!  I find the ragged edges on three sides and the transition from "in process" to finished on the fourth side very appealing.

So now I don't know whether to crop it or not.