I created my showreel using images high resolution screenshots from my major project, I also added some clips from my final video. i used sketchfab to create a turntable which allowed me to then screen-record and add into my final showreel video. I used the website:
https://www.bensound.com/royalty-free-music/track/dreams-chill-out
which allowed me to use royalty free music to add a nice touch to the background of my showreel.
Final video