HulkNukem, on 11 May 2019 - 12:01 PM, said:
I like that they were able to make Rocket look so incredibly real yet whenever someone's face/head is in an Iron Man-like suit they almost always look like terrible greenscreen or a bad deepfake.
CGI is always a matter of how you use, and what you do with it. Filmmakers often use it to make what is not possible in real life, which is the main reason why it looks fake in the first place.
The CGI in Rocket Racoon was used to make a flesh and bone creature, which early on would be made with animatronic. The Iron Man is always flying or surviving explosions, so it's not as believable. In the first movies, the suit was clumsy and heavy, so it looked more real. The newer nano-technology suit that appear out of nowhere looks just fake.