In the first of your new pictures one of the shrimp is showing what looks to be a small saddle.
They do look like they are young cherry shrimp (RCS- Red cherry shrimp CRS are Crystal Red Shrimp and a totally different shrimp species), Because of the clear sections on your shrimps sides I suspect that they have the potential to be bred to develop your own line of Rili shrimp. Rili is just a pattern or colour morph attributed to cherry shrimp and is sometimes being used with other shrimp species which can really confuse people.
As stated by Snazy the shrimp will be saddled first and after mating the eggs will be laid in the undertail section of the female shrimp. From here the eggs will be fanned by the female until hatching. Once hatched the shrimplets (baby shrimp) are fully capable of looking after themselves as they are basically just miniature form of their parents.
Once a shrimp is berried it should take roughly 30 days for the shrimplets to hatch but this can be influenced by water temp.