I think the thing is, while some complain about fans nitpicking about Sally's 'nakedness', there is admittedly some legitimate problem if a character that is naked has something to hide like a visible boob silhouette and curvy legs. It's like if Sonic had a penis silhouette, there's no double standard to it there.
I do like the idea of her having some femininity to her, though still keeping in form with the other characters, that's why I liked Tazi San's design, which has more Sonic-y proportions, but is still noticeably delicate and 'cute' compared to Sonic's.











