The volume of your voice is fine in the clips, but the tone is a bit too high.
You're running jazz inflected break beats with closer to spoken word rap over top of it.
You need a bit of a deeper tone to your voice and a touch of spacing in some of the phrasing.
"Some say the world will end in fire.... (cont) and would suffice." That entire phrase is offbeat, rushed, and almost mumbled.
No idea how serious you are about this, but it's my 2 cents.