It is good to make observations like this about the technicalities of sound and rhythm, etc., but it is always important to try to make a connection between these matters and the meaning of the poem, trying to show how the poem manages to mean what it means. Without such connections to the poem's meaning, talk about the technicalities of line-length, meter, rhyme is just that -- technicality -- and does not help us to understand how the poem does its work.