First off, these courses look fantastic! I love all the bits of extra Zelda content hidden in their courses. I'm *really* surprised with how well Zora's Domain from Ocarina of Time translates into a level here, and honestly it's my favorite level of the pack! The Issac course is also really great to see in action.
The layouts however are a bit mixed for me? Zora's Domain easily is the best out of the pack IMO thanks to it's simplicity and item placement, and Hyrule Castle Town is a second. But man, as much as I love Cuccos... there's just too many. It's hard to even get a route down in time attack on HCT because they always cover up a huge portion of the track and will jump at the kart with disturbingly good timing. The Issac track's obstacles are much better considering they have a distinct pattern to them, but even there it can be a bit crazy, especially in packed servers. And I hate to say this considering how I Iove Lon Lon Ranch... it should be moved to Hell. The Cuccos really make it tough and with such a packed layout it's pretty difficult, but man, despite all the drawbacks I have too much fun with it- ironically I blame my nostalgia for that. Besides, I think it'd be kinda funny knowing you could land at normal Lon Lon or end up in the even more hellish variant if a Hell course comes up.
I can't wait to see what the next new courses are though, and I'm hoping to see what's next after 1.2!