The last picture used is a mockup I got from freepik: <a href="https://www.freepik.com/free-photo/pack-three-crumpled-posters-concrete-surface_13070886.htm#page=4&query=poster%20mockup&from_query=a0%20mockup&position=22&from_view=search&track=sph">Image by Vectonauta</a> on Freepik