2.Line 2: When yellow leaves, or none, or few,do hang
None-no leaves left. Indicates the end of autum.lt is almost winter.
Few-only a few leaves on the trees. The speaker is close the end of his life. hanging on to life like leaves are hanging onto the trees.
Progression from yellow leaves to no leaves at all.None,or few ,do hang- (metaphor) speaker is losing his youth like the trees are losing their leaves