Thanks for all the interest and supportive comments. I would like to work on this design some more. Maybe going triangular or crescent shaped is not the best choice. I bought an ebook recently called
Shaping Shawls by Anna Dalvi . I think I will take a look at it and see if I am inspired. I don't really want a rectanglar shape but that may be the easiest to use with this stitch pattern. Thanks for all your suggestions.