I don't remember that much, but I recall how much your sona has changed throughout the years, I remember drawing your sona when it as a red cat with black hair and that was pretty much it XD it was a drawing with my character Drakir and your sona, which in that time she was called Midnightgaze (I think), but from that I guess I'm quite blank...
anyways (having read that nostalgic part of the comment and onto the actual personification of your sona), I think this is my favorite version of her so far, the hair split into cream and black goes very good with her white fur, and of course the rainbow tail and details she has all over her body, she IS complicated, I have to say it (just as her human counterpart XD), but her design is amazing, every detail of her goes perfectly with everything else, nothing looks exaggerated, nothing looks dull, it all combines perfectly
I now have a great reference picture of her for our collab! haha, I predict it will be lots of fun drawing her, specially while trying to get every detail right; you know, I wish you'd keep this version, it's just amazing, and goes really well with your personality XD oh, and know what would be a kick in the ass by simple gorgeousness? a full body digital drawing of her... I'd be in awe...