I attempted to create a depiction of arms crossed in an 'X' shape using Stable Diffusion's prompts alone, but it seemed unfeasible, so I assembled it with Lora. This pose might be part of a transformation scene, focusing on the character. Depending on the Lora character, it could also be used for a dual-wielding stance, or instead of clenched hands, the fingers could be extended to form an 'X' (cross mark). Feel free to experiment with this versatile pose.
※This lora generate glowing material around arms. I created other lora for simple x-arms.
The below one is the lora.