My fave spelling of the name is
Layla, since I pronounce it as LAY-lah anyway. I really like the combos
Layla Kate,
Layla Rose,
Layla Ruby,
Layla Brooke,
Layla Madeleine and
Layla Sophie.
My fave combo from your list is
Layla Skye. Although I'd prefer
Layla Sky.