These are frames from the special effects storyboard for the episode Collision Course. Most year 1 storyboards were not coloured, but for this episode the planet Atheria is coloured in red and yellow.
Scene 83a
3/4 spaceship + Atheria in BG
Not seen in episode, but very similar to scene 90 (with three Eagles, shown below)
Scene 83b
Reverie with tiny Moon in BG 18 m/m
Shown at end of Act Two. The 2 shots of scene 83 were intended to open Act Three (instead we see a library shot of Moonbase Alpha)