I've pm'ed Arill, a member who sort of "lived with Winnowill" in her mind. When she is still around she would be one of the best to give input.
About Dewshine/LREE ... just a sudden thought:
"ree" stands for flight - can it stand for things/animals that can fly, too? And when "K" in the makes sense for "big" - kan "L" stand for "small"? Treestump called his daughter "my little bird", she likes singing, is very gracious and agile - almost able to fly figuratively. And she desperately needs to be free (think of her encaged in BM and an unwanted Recognition). Can her soulname actually point towards a bird?
And consider that in a Wolfrider soulname there is probably missing something, like I stated in my previous post.