in a new file-
1/ freehand - a single line with the brush set at a few pixels
2/ select the space's-> Modify >Border >fill ( with blue)
3/ select (interior space)> modify > Contract >Fill ( with Red)
the image was taken into the main file-1/Edit> Transform> warp & Skew
then added onto the main file with layer property of mutiply" & opacity at 47%