Really nicely composed song. :D
I like the waltz that you have here. It's rather lovely. Although it can be improved.
The waltz has good variation and a good melody. Personally I don't see a lot wrong with the waltz itself. The song however has a load of mastering and mixing issues that need work on. Namely it sounds a little flat and Midi-like which drains a lot of the liveliness out of this waltz.
I guess you should spend a little more time working on this and it'll really be a success then.
Good luck in the contest!
~Phyrnna ^_^
P.S. Could you give my contest entry a listen also? :D