Making custom backgrounds for titles, intros, and motion graphics all in fusion within DaVinci Resolve.
I use 2 other apps outside of DaVinci Resolve. The first one is JSplacement you can get that HERE the other is Affinity photo. You can use any photo program to resize the images like Photoshop or GIMP. You can find loads of videos about how to use GIMP if you want a free full-featured photo program.
To finish off the look I added a light leak from one of my light leaks pack you can find HERE