This can actually shift from a sad poem to an inspirational poem, in my opinion.

^^ I totally agree with this comment!! I wrote a poem for a friend that said "Catipillars turn into butterflies"...and it was inspirational because my friend was in a dark place like a catipillar, but its only a matter of time before a true beautiful transformation takes place.

I absolutely loved each and every stanza in this. My eyes bounced from line to line I didn't want it to end!
Wonderfully done!

"Under strong branches
Where life is renewed
Butterfly shadows
Beauty subdued"

I REALLY loved this stanza, the rhyme and flow was really good.
You don't know how much I love poems about butterflies..especially butterflies, they make me feel that life is just perfect!

"How long I have been here
Just cannot say
The beat of light wings
Just awoke me today"

- I would suggest the first line to be a question.
and the last or the second line, you should remove one of the "just"s let me try to re-write the stanza in whole:

"How long have I been here?
I can never say
The beat of light wings
Just awoke me today"

This is a mere suggestion..you did an awesome job with the piece Jenn =)
Write on~