This is page 6 of my manga. Mixing 3d background keep going better even for simple thing like a room. I even learn some neat techniques to auto-create outline around characters to differentiate character and bg. However, as you can see here the result is quite inconsistent.
I can't keep fixing small things just to get it to look right. I'm losing considerable time already. To release a full manga in the end of this month is not gonna happen.
Hopefully, this is just a teething problem as I getting used to clip studio.