My guess (based on researching the mutations before bringing my boy home) would be that Skylar is a pallid blue. Riley is turquoise and from a distance they could be twins, but up close he has these lime green feathers mixed in with the blue ones, which I'm not seeing on your bird. Pretty babies! Are you doing anything to discourage/prevent mating? Quakers can have so many babies I would be worried about it!
Here's Riley to add to the roll call:
This isn't his most flattering picture but highlights the blue and green variation he's currently sporting-- every feather he molts comes back more green though

Here's Riley to add to the roll call:

This isn't his most flattering picture but highlights the blue and green variation he's currently sporting-- every feather he molts comes back more green though

