I don't mind you named her Yelsy ! If I may quote myself :

no limit to your imagination,
nothing has to be plausible or orderly, here, we are no longer in the world of adults with mental constructs ... we are in a whimsical fanciness and anything is possible, don't let any physical laws hassle you

So you can name her as you want, it is your story after all ;-)

I have really much enjoyed your version @mydivathings ^_^
Now I much would like to know what happens after ! ;-)
I'm curious , so if you want to write more, just for your pleasure and ours, you are most welcome