Who says that leaves are green

[Richard]

Hey Cassiopeia88,
I like some of the questions you're asking here, and I also like where this could lead. I do have some thoughts though:

Who says that leaves are green
Or sky is blue?
Who says that days are always light
Or night is immanently dark?
 
Who says what anything is really like? -I would suggest cutting this line because this seems to me to be the whole crux of the poem. Personally, I think you imply this with your questions, and don't need to say it directly.

Who says I have to be like you?
Who says you have to be like me?
For your green may be my blue
My light may not be light for you-Where the rest of the poem has been questions, you're adding extra emphasis here once you switch to a statement. My suggestion would be to cut the last two lines of this stanza and have the third line read as: "For my colors change as seasons ago."
 
… and my colors change as seasons go.

I do like what you're doing here, so I hope I wasn't too negative. I look forward to seeing where you take this piece from here.

Cheers,
Richard