How does juxtaposition work in As You Like it? I understand juxtaposition occurs when two scenes are placed side to side but have contrasting...

The main "scenic contrast" in the play is, as you say, between the court and the Forest of Arden. In this formulation, the court is a place of plotting and revenge, while the Forest is a place of harmony. We can contrast, in this light, the characters of Duke Frederick and Duke Senior: Frederick is self-centered and banishes Orlando, while Senior is congenial and welcomes newcomers. The idea is that in the Forest, things are...

The main "scenic contrast" in the play is, as you say, between the court and the Forest of Arden. In this formulation, the court is a place of plotting and revenge, while the Forest is a place of harmony. We can contrast, in this light, the characters of Duke Frederick and Duke Senior: Frederick is self-centered and banishes Orlando, while Senior is congenial and welcomes newcomers. The idea is that in the Forest, things are real and genuine, but the court, with its ambition and paranoia, is somehow fake and dishonest.

Arden deserves a more careful look, however. Perhaps another pair of scenes to consider are in Act II: scenes four and five. In scene four, Touchstone, Rosalind and Cecelia have arrived in disguise at Arden, where they overhear the shepard Silvius proclaim his love for Phebe. Although Rosalind is moved, Touchstone makes fun of Silvius. Touchstone does not like Arden: it is a primitive place, without any of the comforts of court, and the people in it (if Silvius is any indication) are not very sophisticated. As he says, "When I was at home, I was in a better place."

In scene five, we get a different view of Arden. In this scene, Ainiens, one of Senior's courtiers, sings a song in praise of the pastoral life and peaceful nature of the forest. As with Touchstone and Silvius in scene four, here Jacques debunks this praise, making up an extra verse for the song that says that anyone who leaves everything to come to the forest "here shall see gross fools as he." In both scenes, the positive aspects of the forest and pastoral life are called into question by skeptical characters.