I need an effortposter to critique my forge couple setup. I want to make a threesome scene (1futa+2girls) where a futa penetrates a girl who is also licking the other girl's pussy. I've made a 1280x768 gen with 4 forge couple regions: one which covers the whole image and three more which are 1/3 of it (0 to 0.33, 0.33 to 0.66, 0.66 to 1 in the x axis). So far I've come up with this:
1st region, whole image: (quality prompts),3girls,nude,bed sheet,(threesome),motion lines,full body,
2nd region: 3girls,seiza,futanari,sex from behind,medium breasts,
3rd: 3girls,all fours,doggystyle,cunnilingus,closed eyes,
4th: 3girls,spread legs,cunnilingus,large breasts,

So far it's not really working out, I get a lot of broken anatomy and switched positions. Am I fucking it up by adding prompts like 'sex from behind" in the futa's region while it should be in the middle girls? Should I add more stuff in the whole region prompt? Should I just give up and anytest a ready made image? Pic unrelated so I actually contribute to the thread.