I like this pack :) I will only write about the rare element that pickle me.
Skeletal Sands : The track might need an additionnal cut, I often see poeple frontrunner this map. Encore music is to calm for a race.
Thunder Circuit : Maybe 6 turn instead of 7? Forced water jump is fine by me , but some poeple don't like that gameplay.
Killer Skies : Cool track, nothing to said about the layout, despite the fact that there is almost no wall. I just find the music weird.
Diamond Dust : Cool track, nothing to said about the layout.
VB : Even with the alternate color , I don't like that much this course. It also very easy to fall with a lot of player, I esspecial don't like the very last turn where you can just bonk to wall if you are to near to the border.
(Yes , we do battle)
Hyrule map : The less good of the 3 battle map. Mainly because it is not very clear that there is a river at the center. A ton of new poeple alway fall in the pit like that. plouf.
Pool Party : Very cool small battle map. There is enough obstacle to avoid full chaos (if we are less than 8 player at least). Very cozy.
Wind fish : Nothing to said about this one. It's fine.