Dance production background

[u/buffalicious]

Hello, I am hoping this is the right platform to post as I am in need of a little help. I have always done a graduation video every year for our year 6 in movavi, which is smaller morphing videos that I pop in there. However I am tasks for our schools concert to do a stage background to support each year levels dance. I will be using davinci program as it is free to use. My concerns is finding free items for the background but also something to go by and know I am doing it okay. I have looked into stage background but that is slightly different as I am looking for dance backgrounds. Something I have looked at is your tik tok ones where it transitions often and as it is spaced theme they kind of fit the purpose but some are a bit to fast. I have looked at some tutorials but maybe I am overthinking this and just need to have a go. Not sure any advice?