Coco looks like a type 2 yellow face sky blue greywing that has gone greenish (he could also have a grey factor)
Jack is a yellow face grey, probably with no dark factor (over sky blue). Grey is a colour adding factor and there is often a lot of variation in the depth of colour.
Talola is a dominant pied. If she doesn't develop iris rings she could be a combination of the two pied types but there is no doubt that what we can see is dominant pied