Tostones with Shrimp and Mango

Name: Tostones with Shrimp and Mango
Ingredients: 12 peeled/deveined extra-large shrimp, tails removed (about 1/2 lb); 1 cup canola oil; 2 tablespoons fresh cilantro, divided; 1 small jalapeño pepper (optional); 1/2 teaspoon seafood seasoning; 1 tablespoon olive oil; 2 tablespoons diced fresh mango; 2 tablespoons tri-pepper mix (diced fresh green, red, and yellow bell peppers); 2 tablespoons diced fresh red onions; 2 tablespoons lime juice; 1/4 teaspoon kosher salt (+ more, optional); 1/4 teaspoon pepper; 12 frozen fried plantains (tostones); 1 (8 oz) package Deli guacamole