Make it longer lol hehehe....no...in no sense it needs to be prolonged. 1 minute of medieval feel in this modern age is enough :) I have the similar taste as of you. Love this composition. I would have tried how it feels to put a positional "far" reverb on the whole piece. But all in all, very very nice and cheerful :)
Glad you like it, that reverb idea is a good one... might give it a try. I was trying to maintain a level of intimacy with the instruments.