Honestly, while the legs are slightly odd, I think it kind of works for the '90s anime look, because most people have insanely long legs in that every time you get to see a full profile shot. (Not like Crystal doesn't too, a lot of the time.) In any case, overall I'd say it's an absolutely awesome job! Especially considering how tough elaborate animation is.
Also, I vote to change our forum wallpaper to the corresponding closing image from the video
Also also, it's a little weird that Chibi-Usa is naked, but that's on Crystal really; and at least it's kind of cute/intimate with Hotaru. No wonder people take that ship so seriously as more than just a childhood friends thing with imagery like that...