So I'm finally starting to compost! (I know what took me so long!!) I was wondering if I have to really be strict about my layers? Like do I start with green or brown layer? And what about in the winter when all I will have is food scraps, I won't have any grass clippings or leaves then? And if I am just doing a pile with chicken wire around it, is it okay if I don't have any kind of covering over it? Thanks for any help!!