HELP! getting crazy with compositing footage and 3D model. render result was without footage!

Support Compositing and Post Processing
1

please help!!!
i dont understand about compositing :frowning:
viewport :

render :

2

can’t see any images in your post…

3

viewport :
https://imgur.com/a/9ctOybc

render result :
https://imgur.com/a/YdwvVbg

4

Why are you double posting ??? HELP! My 3D model wont show up in video footage - #7 by Okidoki