Begin by bringing a large pot of water to a boil over medium-high heat. Add the fresh corn kernels and cook for 5-7 minutes until tender yet crisp. Drain and rinse under cold water.

In a mixing bowl, combine the cooled corn, diced cucumber, halved cherry tomatoes, and finely chopped red onion. Stir gently with a spatula.

In a separate bowl, whisk together the mayonnaise, sour cream, fresh lime juice, chili powder, salt, and pepper until smooth and creamy.

Pour the creamy dressing over the vegetable mix and gently fold it in using a spatula until well-coated.

Before serving, sprinkle crumbled feta cheese and chopped cilantro over the top.