I can't find anything that needs to be improved on in this poem.
You kept up a steady rhyme scheme throughout the poem and none of your rhymes sounded forced in any way which is very difficult to do in most cases.
The poem also kept up a steady rhythem, as i read, i could tap my finger in time to the words which formed a beat. Excellent!
I also agree with Frank. It's a difficult subject to try and write about but you did an admirable job.
So you deserve the 5 and more!
*Gem*
(Congratulations on your place in the contest =)