Out of what I've already made, my arranges of
Infinite Nightmare and
Loose Rain would probably be the most suitable ones so far. The classical ones are still too primitive and lack dynamics and articulations to fully represent their genre, and Suwa Foughten Field, while epic in itself, has quite distorted flute ensemble sounds and horrible overcompression (I learnt of the dangers in overusing compression only after making it). I'll probably still be making stuff before the deadline but if we start by looking at what we already have those two are the most suitable ones so far IMO.
However, if they're to be added to an actual album, I'm quite sure I'd need to edit them further. Loose rain has some serious issues with balancing the bass, and there's one horrible compression mistake at about 1:40 where there's a clearly audible drop in the volume. Also, the album version would have to be exported as a lossless WAV file instead of a MP3, and it maybe has to be mastered in a different dynamic range in order for it to match the other songs we pick. Making an album with huge variations in song volume levels is IMO a bad idea, so we probably have to adjust the volume/compression levels later on after the selections. Therefore, using stuff as-is isn't going to work and anything that gets picked will probably need further editing.
Also, there's the issue of soundfonts. Since I have yet to get any commercial instruments (I'm considering actually buying some soon, probably starting with the commercial version of Podium and GPO4, but haven't yet decided for sure when) I've had to use soundfonts and free VSTs. While the VSTs aren't troubling, the free soundfonts circulating around the web are often quite old and from relatively unknown makers, so checking, whether they have been produced legitly and whether there are any limitations on commercial use (some free soundfont makers specifically forbid commercial use) would probably be especially tricky. For most usual instrument types getting rid of soundfonts isn't a large problem since there exist usable free guitar/piano/bass/etc. VST plugins that can be easily found, but with classical instruments finding good VSTs is a pain. If some of my stuff gets selected, this will demand serious consideration (of course, if I decide to buy GPO4 this year, I can probably replace all my classical instruments with that removing the problem entirely, but I can't yet guarantee I'll buy it so don't count on it entirely).