Wow...

It just leaves my heart empty...reading this

Fantastic job! (:

This is a very nice poem. One thing, though.

"Or maybe there is sun, I'm not sure

But it doesn't shine brightly anymore."

The rest of the poem rhymed every two lines, but the words 'sure' and 'anymore' don't really rhyme.

But all in all, I really liked it!

Love this. The choice of rhyme is pleasing. Do consider developing this further if you can. It ends too soon in my opinion.