I really enjoy the idea of this poem, I would suggest fixing a couple grammatical errors such as
"It always flies so high as a hero's in the sky" hero's doesn't make any sense her so perhpas use "hero" or "as heros". There were a couple places like that, but again a very good start with some small tweaking I think this could be a truely remarkable poem:) Keep writing and keep smiling^_^ Thanks for a nice read