Wan2.1 can make some amazing images with no deformed hands or extra fingers like flux. You can use any character sheet you want but you'll have to adjust the cropping dimensions as I have them set for the pose sheet I used. 

Give a good, detailed description of your character in the text prompt. 

You can use this to create a lora or use the character images in other workflows like flux kontext or wan vace image to video.