Looks good. A couple things I might suggest for next time:
1. Colour Correct and match your elements into your scene, or take a portable green screen with you so you can film them in the same lighting condition as your clean plate to reduce the look that they don't belong in the scene.
2. Check their scale against a reference on set. I recommend always doing 2 passes at least. 1 with reference objects/people around and then one clean plate so in post you know how large/small to make things.
3. At times the objects appear floating in the scene, could be a result of the camera tracker not correctly finding a ground plane or 0 point?
4. Either you have two light sources or you're on a planet with 2 suns because you have natural shadows that cross perpendicular to your shadows you added in post.
5. Depth of field seems incongruous between your real and virtual camera
6. Another option is to throw away realism and lean closer to surrealism but.
Hope that helps. It does look very nice, and I loved the pull away through the monitor at end. Very cool.