This image was created by taking the original image then adding a rectangle using the rectangular marquee tool.  After surrounding the area I wanted to use I then went to my layer options and selected ‘solid colour’. This allowed me to then pick a colour. After picking the colour I changed the opacity to allow the image to show and then rotated the shape.

After doing this with one shape, I repeated it with the other to create two bright contrasting colours on a black and white image.