OK, on the Ryodan designs...
I don't like Kuroro's design on that design page (what's with those ears...? what's with that nose...?). He definitely looks uglier than in the manga and in the old anime. Why doesn't he look like in this:
I think that Chrollo looks better here than in the design picture.
Also, the naked chest and six pack... I don't mind, but I'd hate it if he runs around half naked all the time because, first, as it was said above, his chinese-style shirt is cool, and second, going naked all the time is out of character for him as he's not Hisoka (and even Hisoka doesn't do it all that often...).
And Pakunoda... where's her trademark high heels, dammit?!
Some weird color patterns aside, the rest are OK, most of them are even better than I expected, although I don't quite get blue bandages and lilac skin for Bonolenov.
And damn, my hopes are going down...