When preparing shrimp ceviche, the quality of the shrimp and the freshness of the ingredients are key to a successful dish. I always start by using peeled, deveined shrimp, either freshly cooked or from precooked shrimp, depending on time availability. One tip I've found useful is to marinate the shrimp in freshly squeezed lime juice for at least 15 minutes; the acidity “cooks” the shrimp beautifully without heat, and this also helps with food safety. Adding diced mango and creamy avocado enhances the texture and adds a natural sweetness that contrasts nicely with the tangy lime and slight spiciness—sometimes I include a pinch of salt, black pepper, and a bit of finely chopped chili for extra kick. Using the instructions hinted in the photo text, I layer the ingredients starting with lime over a bed of thinly sliced onions, sprinkle some salt and pepper lightly, then mix everything gently to keep the avocado intact. For those curious about storage, shrimp ceviche is best eaten fresh but can be kept in the refrigerator for up to one day. Ensure you store it in an airtight container to preserve the flavors and prevent the avocado from browning too quickly. This recipe is versatile and pairs wonderfully with crunchy tostadas or corn chips, making it perfect for a light lunch or appetizer. Feel free to experiment by adding other seafood like scallops or substituting mango with pineapple for a different fruity twist.