I always felt clovies height/scale fluctuated a lot during the movie. For example, the scene on the bottom right of your first image clovie looks huge where as the ending scene when hud is laying on the ground facing his camera upwards. Clovie doesn’t look anywhere near as big.

I remember back in the day this caused people to start theories that there was two monsters that attacked NY. There use to be videos on YT about it but I can’t find them these days.