I'm no poet. I don't even pretend to understand modern free-form poetry. But you've posted rhyming poetry, so I'll take a stab at a critique. Take it for what it's worth.
My understanding is traditional rhyming poetry should ordinarily have the same number of feet in the rhyming lines.
The rhyming lines of your poem don't have the same number of feet. There's a fine distinction between a foot and a syllable, but for intents and purposes they're the same. Here is one example of mismatched feet:
Raise my musket fire a shot [seven feet]
I'm the instrument of a murderous plot [eleven feet]
Which frankly, sounds a bit clumsy to me. Rhyming poetry almost always sound better, is more fluid and natural, if the feet of the rhyming lines match. Making the effort to write lines that rhyme and have the same number of feet is part of the art.
Here are two lines I just wrote for an example:
There once was a man from Triscuit, [eight feet]
Baked a mouth-watering biscuit [eight feet]
These two lines, as bad of verse as they are, have the same number of feet. (Counting "baked" as one foot, as "bak'd," instead of two, "Bak-ed.") The lines I wrote could be the opening of a limerick. Limericks have matching feet, which lead to part of their appeal. Maybe I'll finish it someday.