Usually when identifying colour, it's best to wait until the Crested is an adult because their colour varies so many times as they mature. However, for their patterning, there isn't a huge change. If they are born a harlequinn, they stay a harlequinn. They don't lose any patterning, but they can gain a little bit. Also, I've seen babies that were plane jane for about 6 months and then all of a sudden they fired up to an intense tiger, so there is an oddball every now an then.
For Cyndi - personally for now I would call her a patternless, simply because there isn't enough patterning on her sides or her dorsal to warrant calling her a tiger. However, this could very well change.
For Margot - For now, a buckskin dalmation. Keep in mind that Buckskin is the morph, and Dalmation is a trait. But just by looking at the pictures, it looks like there might be more dalmation spots that will come through, as well as more colour and possibly some striping along the sides.
Hopefully this helps!