In a medium bowl, combine corn, diced avocados, diced cucumber, chopped red onion, and halved cherry tomatoes. Gently mix to keep the avocados intact.

In a small bowl, whisk together white wine vinegar, olive oil, lime juice, maple syrup, Dijon mustard, and add a pinch of salt.

Pour the dressing over the salad mixture and gently stir until all ingredients are well combined.

Serve the salad on a layer of butter lettuce, creating a beautiful presentation.