Awesome work! My favs were Wistful Mistin (love that little dim chord you throw in, really makes the wistfulness hit) and the jazziness of Delivery! Overall super varied in the styles you wrote, it's an impressive amount of range!
My one small critical feedback is that in Wistful Mistin, when you use the woodblock, you could probably make the rhythm of it sound a little less robotic (it's a super small nitpick but I didn't feel that way about any of your other percussion, so I think you just need to add a little groove or human touch to it)
Also enjoyed your writeup of your hypothetical game :) and am impressed that you composed so much music in such a short time!