Photoshop - PPB

This is my PPB.

I searched a technical fashion drawing without colors on it.

I also found a fabric pattern from internet.

And then opened them, also used the polygonal tool to select the part of the technical drawing, which  I want to fill the fabric pattern in. 

And then I renamed the fabric pattern as"pattern 1"in order to recognize easily.

Then I made my chosen part of the pattern into a square and it was symmetrical.

The same important thing was, don't forget to create new layers during editing. 

I selected the part of the garment image and filled in the pattern, and I scaled the size  of the pattern, so it can change the color, the size of the spots on it, these made my print proposal board.