How much is enough?

The quilting doesn't show up very well in this photo, which I took late last night with lamps to light it up (might be better photographed in the day time in more natural light). I have 'scribble' quilted around and around with different colour varigated threads, the colours don't show up at all, and there is no puckering - yeah! But now how much quilting is enough? I will have to wait until Janice can see it in the 'flesh' before deciding when to stop. Then it is trimming the edges, putting on the belt for the cross and deciding what 'distressing' treatment we are going to do to the edges.