Criticism (rant/question)

Well, I have a problem. I seem to always be hit or miss when it comes to my new 1.8 skins, and I really want criticism. Not the rude, annoying type, more like the needed, instructional type. It's strange, one skin get 1 diamond, and another released after it gets 8? So please tell me what I'm doing wrong/ what needs improving.

   Besides that, the whole idea of Criticism is very grey. Insulting is when you try to make somebody feel bad about their choices and actions. Criticism is when you try to tell somebody what you dislike in a well-mannered way. If you put too much hate/ anger into it, you will seem more of an unhappy, dislikable person. So when you see something you don't appreciate existing, don't go all crazy over the damn thing. Instead, tell whomever posted it what is actually wrong.