Is
Leigh a family surname for you? Is that why you want to incorporate it so much? If so, then I'd prefer to see it left in tact,
Leigh Grace. If the flow bothers you, then how about
Leigh Graciela?
If
Leigh is not a family surname, then I don't care for it. The "-leigh" endings on names just look contrived to me. It was unique on
Ashleigh Banfield. But now it just looks tired.