In a food processor, puree the shrimp, lobster, mascarpone cheese, egg, ginger, water chestnuts, and cilantro. Transfer to a bowl and season with salt and pepper. Cover with plastic wrap and refrigerate for one hour. Consomme: Place the broth, water and dashi in a pot bring to a boil. Lower the heat and simmer for a few minutes. Dumplings: Lay out the wrappers on a work surface and place a heaping teaspoon of the filling in the center of each. Wet the edges of each wrapper with a little bit of water, gather the edges together, and twist to close. Place the dumplings on a baking sheet lined with parchment paper, cover with plastic wrap, and refrigerate until ready to use. Bring a large saucepan of water to a boil and cook the dumplings for about 5 minutes, or until they float to the surface. Remove with a slotted spoon and serve with the consomme. Garnish with bell peppers and cilantro.