If you know how to edit:
The sky has changed to rust
the word 'has' should be 'had' since all your poem is in the past tense.
Other than that tiny mistake, I must say I liked it.
I also like that you did not try to explain it, sometimes writers do and they should not, leave it to the imagination of the reader.
I hope my comment has encouraged you, as I intended. (I've done a follow so that I get to read your next ones)
aye! Thank you for helping me out with my mistake. :D I'm glad you liked it.
Followed back!