Overall these look like they'll fit in pretty well to the land's atmosphere. I can sort of see the argument that some are a bit too "casual" and/or don't match cosplay levels of detail. But that's what happens when you have to make a costume that's going to be worn everyday in the real world for 8+ hours and for varied body types.
And to that end, there are a lot of layered and long sleeve looks. That might work fine for Anaheim or Paris, but that's going to be tough in the heat and humidity of Orlando, even if the fabric is breathable. I'd hope (and expect) to see some short sleeve variations for WDW cast.