@VRSUN Firstly, I love your casting and camera quality.
Tip:
Please consider adding a face closeup shot/scene where the model is lying down on a flat surface (bed, floor, etc.) and the model has her hands up. The camera should be capturing a closeup of the model's face from the top with her boobs visible in the frame.
do not move the model or camera when shooting in this position, instead keep the camera still and have the model make hot facial expressions and move her hands above her head. This will make it very aesthetic and passionate, it will also make it easy to appreciate her face and upper body.
The closeup missionary shot ( lying down face closeup shot) is a favorite for many vr viewers (including me) and this tip increases the immersion and enjoyment 100x. I swear, if you pair this closeup missionary camera angle with your casting and quality, you'll get a ton of viewers. I'd recommend dedicating at least 5 mins for this camera angle/shot.
Examples:
Here are a few examples for this shot:



Let me know if you have questions or concerns.