Grunge Love Background

If you critique this background, please, don't be too harsh.
Every time I get critiques on any of my art, people usually do these things:
Only point out the flaws in my art, and forget to say anything good.
Say something very rude, that doesn't even need to be said.

I stopped asking for critiques after a while of people doing that to me. All I'm asking is for you to be nice.