Electrifying changes

So I was unhappy about some small things on my Sona, like the ears and stuff, but I think after trying out a ton of styles on how to draw them without losing the fluffy-puffyness I finally found a way to draw them I like >o< I like this one, it almost looks the same as before but... with more "ear-shape" x//D The backsides are now dark only. The white fluff is only on the front X3
I also miiiight draw her lightblue chest-fur a little more up. Like... Wing shape (sliiightly xD) or a shield >u< I also tried out to add a white Tail Tip.. But I am not sure about it. Seems to me it is hard to notice.. Hmm.. I'd like to make her tail a bit more interesting by adding anything to it but idk what color and how.. xD Should I make the lightblue darker so the white tip is better to see?
Anyway, I like how this came out so far >u<