Sweet and Sour Seaweed "Fish" with Sprinkles of Veggie Colors (In Chinese)

For all ingredients, please use organic versions if available
Veggie Seaweed Fish
1 piece laver (seaweed)
1 bean curd sheet
5 bean curd pockets, shredded
Flour paste
Vegetable Colors
1 piece ginger
2 shiitake mushrooms
½ green bell pepper
½ red bell pepper
Carrot
Seasonings
3 tablespoons ketchup
1 tablespoon vinegar
1 tablespoon soy sauce
Salt
Sugar
Ground pepper
Corn starch
Olive oil for cooking