If you want to get good shooting posture when taking Cosplay photos, you have to pay more attention on both the sitting position and hands position.
Firstly, avoid sitting position taboos
When taking the sitting position taboos, it is not right to use common sitting position in daily life such as the whole body sit on the chair, if it is such case, the legs of Cosplayers should be in the casual condition, and there would be more and more fat accumulated at the upper end of legs, and after a long time, legs would become more thick and clumsy. If you are the skillful photographer, you should tell them the right sitting position that human body should be forward and then close to the edge of chairs, the keep your chest tightly.
Secondly, how to use right hangs posture?
In short, you have to show the integrity of your hands, otherwise when looking at the Cosplay photos by other people, they would think that there is something wrong about your hands. It is not right to put your hands in the pocket or even hands on hips, on the contrary, you should show your parts of fingers.