Add the peeled shrimp and marinade ingredients to a bowl and set aside. Marinade for 15 minutes while you make tortillas.
For the tortillas, add all ingredients into a blender and pulse until smooth consistency is reached. Let it sit for 5 minutes. Heat a frying pan on medium-high heat and coat with a little bit of oil. Add ¼ cup mixture at a time and cook on both sides until edges are golden brown.
Add oil to a sauté pan and heat. Once hot, add garlic, onion, and peppers and cook until soft. Sprinkle chili powder and salt and pepper. Add the shrimp, with the marinade and continue sautéing. Cook until shrimp turn pink.
Top tortillas with the shrimp and vegetables.