first two picts are cinnamons, definitely. not sure how you mean by silver, there's no such colour in hedgehog breeding.

the silver you're talking about is a type of snowflake colour, which is almost impossible to know when your hoglets are still young. you'll only be able to know if your hedgehogs grow up to be snowflakes once the baby quills are all off, but it's rare since i don't come across any breeders that holds snowflakes, and considering it's a recessive gene it's almost impossible that you'll manage to breed one.

some breeders do colour breeding because it's a trait that can be inherited. you'll know what are the colours of the hoglets if you know what are the colours of the hedgehogs you used for breeding.