Alright I think I addressed most of the issues, and I replaced the .mus file. (And I noticed that I forgot a tempo marking -whoops.) Also, I'm gonna be away at camp all next week, so this topic may die down for a bit.
Sootopolis: I dunno, I think it's just something to do with it being 8-bit and all. Even if I were to add extra 16th notes at the beginning, I feel as if it wouldn't sound right at all, and it'd be even further away from the original piece.
Bespinben: -I went through and removed all 3-note chords.
-It sounds really really weird to me when the bass is an octave up. It didn't sound "dark" enough, if that makes any sense. I figured that it would retain the ominous quality of the original song if the bass were lowered.
-I adjusted the whole voicing issue.
Additionally, a little notepad issue: I am unable to attach the crescendo/decrescendos to just the right hand. If someone could apply all that to the R.H, keep the L.H. at mf, and have them both become mp at m.9, that would be swell.