OK. First, lez go over all them symbols.

That blue sign with the arrow over some of em tells that they r males. Pink sign with the cross tells that they are females. The hearts on Rainfeather, Lightray , Shadetree, and Ashstone symbolizes that they are mated to eachother.(Making a short story bout that soon :3) The heart with the cross on Smokeray and Lightmist says that they were and/or no longer mates. The tiny sign u can barely see on Rainfeather's symbolizes that she is with foal. And that darkened profile is there unborn foal. :3

ANYWAY,

Thunderray as you can see takes his coat from smokerray and shadetree, and his wings from Lightray.

Raintree takes her coat from Lightray and Rainfeather, and wings from Rainfeather. As you can see Rainfeather doesn't take from her parents at all. Lightray takes mostly from his dam. k, just wanted to explain all this so Thunderray and Raintree doesn't look like he is completely different from his fam. ;p