I love Tianyi's final design. Ling's I don't have strong feelings towards, but it's nice!
Personally, I actually love YANHE's new design and think it's pretty much perfect. YANHE was already visually distinct from the rest of the vsinger characters and already had that more streamlined, high-contrast look that these designs have. I think the original 'chunky' design, while unique and eye-catching, was overdesigned in ways it really did not need to be as a result. The huge ruffle on the coat, for instance, the extra random waves on the bottom, etc. The big shoes were fun but the new shoes really aren't too different at all, sans the thinner soles and again the lack of the huge ruffle. They added some transparency and brought the look in general more in line with what I think of when I think YANHE. It's no more or less feminine than the previous design-- it just comes off as more refined to me. Just my personal taste, maybe.
I did kinda like the cat-ear look of the old headset but it might've been a bit too on the nose hahahah.
Anyway, I'm really glad this is what we landed on!