While this world and setting is mostly based on Chinese Myths, Tales and History, the aesthetics do not suggest the same. With different cultures and climates also come different aesthetics. Following is a small list that serves as a Guideline. You are free to mix up styles and what not. It is only to give a general Idea and to show that you do not need to design Chinese looking characters.
Hair
There are no special pattern as to what type of hair are common in what region. All types of hair are common every where and all shades and hues of colors are allowed for hair.Skin
Unless in special Transformations, Poisoning or other Ki Art that causes skin changes, only natural skin colors are allowed. Those living in desert regions tend to have the darkest skin tones. Those living in snowy regions tend to have dark skin tones. Those living in coast, open fields, steppeh regions tend to have neither a dark nor a pale skin tone. Those living in forst and mountain regions tend to have rather pale skins.Body Build & Facial Features
In all of the condtinent all kinds of body build types and facial features are widly mixed. So people may have the same kind of big nose, irregular teeth and slit eyes no matter where they come from.Clothes
Clothes varey from country to country, there is no restriction as how to design clothing, it merely serves as a guidline.