I was asked by bonnie how I take my neutral background pics and I promise to post some pics of the making-of but sadly I had no time before my vacations.
So here it is.
It is a very simple process as shown in these pictures from the swimsuits shooting.
I place a color paper on a movable base and stick it with tape. The other end of the paper taped to the wall.
The movable base makes it versatile to have a more defined or smoother division between floor and back wall moving the base closer or farer from the wall. The farer form the back wall the smoother the result.
Focusing with the cam on the clickies you kinda loose the back and you get a neutral colored background.
Simple, right?