I blended two papers to help create the background. The bottom paper is a white paper from Phenomenal Woman. The top paper is a blue paper from Color Crush 63 Artsy with a blend mode of Hard Light. I then added additional paint elements and used underlying layer slider to blend them with the background papers.

For the photo I used the object extraction tool to remove the person from the background. I then used the Linear Light Blend mode and the underlying layer slider to blend the photo with the background.