Alternate: It'is squeaky with those really high pizzicato strings, but the rest isn't bad.
Echo: Ooh... This one brings out the core melody the most dramatically and beautifully. I don't know what it is.
Strings: Another dramatic variation. While the raindrop effect is really nice, the tempo change is unexpected.
TSA: Back to those squeaky strings... Hm.
The Strings version is probably the best of the set, even though it's actually a duplicate of one of the songs in your Various Slow-paced Songs set. Sneaky!
This is a great collection. Thank you. 
