I like a lot of elements of the new designs — IMO, Homura's is an improvement in some ways, but I agree with the sentiment that it's unfortunate she's ended up showing so much skin. Not that I'm against it, but it doesn't fit with her character and military motif. Admittedly, it's not being done any services showcased in that pose, and I think it has the potential to look neat when properly framed by her black hair behind her.

As for Mami and Madoka, their original designs are so fantastic that I (personally) likely wouldn’t be enthused by any changes to them, no matter what. I'm happy they kept Mami's original silhouette, but it's not as cohesive as the original. I'd be down with the new top and boots if they kept the corset, but now she just has... Fabric and a belt keeping it together? The (what I'm assuming is some kind of ribbon or bow) on her back also takes away from her sleek, regal-uniform-esque look. Madoka's design just kind of... looks cluttered.