I absolutely love your quilt. Batiks are a little hard to needle through, so hand quilting will be a little bit strenuous.
That being said, I would stitch in the ditch all the batik seams in the pineapples and quilt around each one and some of the leaves (All of them if you can). In the white background I would do a diamond cross hatch. Start with a line from corner to corner, each way. Then an inch apart from there.
Good luck with your quilting...