Alright, here are my votes! (I hope I did this right )
First, my honourable mention: "Prelude Woods" - birdnet
I really got the mysterious, woods-like feel in this one, and it sounds fantastic! It does however feel more like an area theme rather than an intro or prelude, but I'd say its perfect in that regard; I could clearly imagine myself in a mysterious forest while listening!
And now my top 3.....
3rd Place (1 point): "Prelude, An Opening to an Adventure" - tiger_child
Loved the range of instruments and oriental sound in this one! Really has the feel of leading up to a fantasical journey, and the various moods I got throughout really hit it home.
2nd Place (2 points): "Dawn" - Avaruussaha
As Hash said in one comment, the will to fly is definitely there in this piece. I can very easily imagine this introducing a detached, steampunk world, but what I probably love the most is how you managed to capture all that in such a minimalistic way with the guitar. Fantastic!
1st Place (3 points): "Prelude to a Forlorn World" - Basisti94
I'll be honest, this one has been stuck in my head since I first saw the submission. It's such a beautiful melody to convey the sad state of the world it's set in, and manages to keep it so well when the drums kick in, the pace increases and the feeling of danger intensifies. If you ask me, everything you wanted to convey has been done so successfully, and beautifully, and sets up your world perfectly. Amazing work!
Alright, those are my picks! Everyone did a fantastic job on this one! Can't wait to see who wins!