All critism welcome

I'd like some feedback on my poems (there are only four, and I'm aware that at least half of them are rubbish), as I've had none so far. I need constructive critism (so "that sucks" is useless to me, unless you can tell me why), I'd like to know what is good about them (if anything) and how I could improve them.

All suggestions would be of great help.

Thank you. :) I have read one of your poems and I was very impressed. I adored it.