I agree with both previous comments. This is an incredibly beautiful piece. I would complain that it’s too short, but the briefness only emphasises the simplicity of such sombre happiness.
Capitalising your “o” would make this absolutely perfect.
I really like the separation of the final line. Your rhyming is magnificent. Making a poem with only two sentences (a stanza with only one) is brilliant. I really enjoyed it. Well done. Abby x
musicgirl 
Abby (LoA)