hi hun, don't be afraid to drag the glitter down zone 2 as Dee said, a clear tip gives a lovely look to a glitter nail, for a client who won't let you start with a darker shade, end with a lighter one, so as you come down to what would normally be your smile line add a bit of silver glitter to the baby blue or a white, CND used to do one called city of peace ( I think, might have been city of angels, I have both lol) you can do this by picking up a bead of the white and then a beed of the baby blue on top so when you lay your brush down the blue is on the nail first and as you pull the product down the white will flow behind it.
Zone 3 keep the bead nice and small and place it at the bottom of zone 2, then flatten your brush out so it's not your 45% angle, it's on a more gentle slope to the nail plate, then you pat push it down to the cuticle, stop just short of the end of the nail, wipe your brush of and place it over the laid down product, keep your brush flat to the nail plate, push down slightly and slide back towards zone 2. you should end up with a flush zone 3. Side walls are nice and straight but I've noticed that the line of light on one or two of your nails are not quiet straight, so a little bit more shaping needed when you are fileing.
Over all, I think your client should be pleased with these.:hug: