Congratulations to tan x dx! (Although I must say - personally, out of those three, I'd have picked kieran's level to win.)
I'm quite surprised to see Swampflower not only make it to the finals, but to in general get the best result so far of any Lemmings Plus level in LOTY. I don't consider it a bad level by any means, but I never thought of it as a particularly great one either; I was expecting "Dareful Drop (Part II)" to do the best out of the nominated LPVI levels, though I would have thought Part I was a stronger candidate (but it didn't even get nominated).