There are more than 90 styles in this site. How should we choose the most appropriate style for a photo with people? Honestly, I think the answer is just try as many different ones as possible. It is hard to guess what a stylized image would look like for a photo with a given style. Here is an example. The original photo is just a portrait of a girl. There are a few portrait styles in this site, but there is no such a rule that you are supposed to use a portrait style for a portrait photo. Below shows 5 different stylized images using 5 different styles that has completely nothing to do with portrait, but yet the results looks very good. So the conclusion is: just try it out!