For making this scene, I downloaded a practice footage from ActionVFX website (for practice purposes), with the actor dressed an astronaut walking towards the greenscreen, with the camera moving from up to down, while shaking a lil bit.
Then, I loaded this footage in blender Motion tracking tab and then started to track the tracking markers in the video, and with its help, I was able to solve the camera motion and record the CGI scene with the same camera movement as the footage.
Then, I made the surface of the planet in Blender and then downloaded a material from the internet, tweaked it and then applied it on it! For the sky, I downloaded an HDRi from PolyHaven, and...tweaked it and voila! CGI ready!
Then, I rendered it and then rotoscoped the footage in RunawayML and then Chroma Keyed in Blender and then, layered them all in DaVinci Resolve and the Final render was ready!