Typically a classical symphony especially in the 18th century followed a distinct order of sonata-allegro for an opening or as an introductory. Then the theme and variations which would give way to the minuet and trio. Lastly you can use the rondo and also a sonata I believe. That's just from my experiences from listening to multiple sources of compositions.
What is your favorite animation feature? Do you think the animation part could have been improved? Two qualities would obviously be creativity and a good team player.