Blocked by a Snowball, Climb to Freedom: Two snow levels, they look similar to each other on first sight, and they're immediate successors. Let's consider to separate them.
Beneath the Lab: Rank slightly higher. You can't do much, but it's a trick nonetheless.
Ferry Tale:
1. Rank at least into Quirky. Nontrivial, and invites wrong solutions. Quote Ramond: "What is this doing in the first rank?"
2. Fix the backroute where you cluster the lix and bat them with the landing floater. This saves 8/10. Can we do clearer than merely raising the save requirement to 9/10?
You'll Get Over It: The second-hardest in Lovely. Probably okay where it is.
Road Goes Ever On: First tree's branch doesn't catch falling lix, but only barely. Make it clearer.
One song (which? Will fish it from the 5 in-level tracks) sounds like it loops/restards wrongly in the beginning.
Can't Reach It: Uprank at least slightly.
Box Set: Ramond didn't attempt it near the end of the stream, felt out of energy, and this looked precise. It's not hard in theory, but it's fidgety to solve without insert-into-replay, and Lix doesn't support that yet. Candidate for slight upranking if we need another one.
-- Simon