The amount you can adjust a Chinese characters look without it changing meaning
Actually there is a lot of styles when it comes to handwriting.  You can check out this page https://zh.wikipedia.org/wiki/%E4%B8%AD%E5%9B%BD%E4%B9%A6%E6%B3%95. It can be quite hard to understand sometimes. like this one https://zh.wikipedia.org/wiki/%E8%8D%89%E4%B9%A6 .