Not gonna lie, for new outfits for some of the biggest moneymakers, some of these don't exactly knock your socks off. Ike's outfit probably looks the best stylistically, but if they were going for a connection with their gimmick (based on most of the other outfits), I don't really see it in that; otherwise not much to complain about. Luca's looks good too, but that's got the same issue. Mysta's look has a good enough balance between character connection and style, one issue I'd probably have is that his hairstyle in that looks pretty similar to Kanae's. Vox-wise, it probably works with his character, but I can't really say it feels like it clicks as well as his main design. The intro was definitely more than usual, but the guy's a Chinese fujoshi money vacuum, what else could you expect? All in all, most of those will probably work in the long run.
Shu's is the one that really struggles IMO, the alternate robe just doesn't look remotely as good design-wise. I also don't know if I'm seeing things/talking out of my ass, but something about his expression just looks creepier.