I am pleased to see you have some crystals left (and I see you have a thermometer in the tank).
You have a good sister as she has forced you to move forward and those yellow stripes are beautiful and I expect the bodies will colour up even more after they have fully settled in and feel more secure and safe in their new environment. Now you can just enjoy watching them and hopefully the berried one will have babies soon. Eggs start yellow (the yoke) and then go grey as the yoke is consumed I believe so you should be able to tell how far along the process she is?
IF you do get the odd one die in the first 2 weeks try not to panic or change anything too much as it will likely be down to the stress, or may have been unwell/weak when you got it, but you don't want to panic, start changing things and risk stressing all the others out. I don't think I have ever had 100% survival in the first few weeks/month and you have plenty, but I will keep my fingers crossed you don't lose anymore!
There may be the crossbreeding issue to think about at some stage but as the orange ones are babies you can put that decision off for now as they don't start breeding until about 3 months old.
I (personally) think it is better to buy direct from the breeders than in a fish shop as it means the shrimp only have to adjust the once to new water instead of twice (in short succession which must cause them stress???) when a fish shop is used, that's just based on logic and I have no evidence though? All mine were bought straight from breeders (ebay) over here, and sent in the post, but the UK is small enough for delivery to be less that 24 hours from point to point so I understand this may not be as viable/easy in bigger countries.
Hopefully you have now found renewed enthusiasm with the new shrimps your sister bought you! They certainly are beautiful - great photos.
Simon