Little Mo rocking her lashes.
Usually I wouldn't use a D curl on older clients like Mo as I find it doesn't really work, but on her this curl does and helps to open up her small eyes and lift up towards her brow where she has a lot of space, so we need some curl and length to extend into the space. If you had a client with a very saggy or puffy lid and little space between eyelid and brow you would use a flatter curl like a B or C to extend out away from the hood.
But you know what it really is trial and error, even for me to keep playing with curls and different lash maps to figure out what works on that client and it can take months.
MO's left eye is much smaller than her right so I try to balance, her lashes on the left eye are always less and don't extend as far on the outers. So I create fluffier fans on her left eye and ensure I don't lash the very outers on her right eye to balance with her less full left. You can see from the video that the right eye is much better - of course it is as it offers me a better platform to work off, and I'm right handed so my right eye tends to be better than the left, but hey I don't stress. I know I've worked hard, done my best and she's happy - actually more than happy and it's be being over critical of my work! Which we are all guilty of :)