Cut the cooked crab meat into bite-sized cubes.
Drizzle with the lemon juice and gently toss.
Dice the pickled cucumbers.
Finely chop the onion and fresh herbs.
Chop the hard-boiled eggs.
In a large mixing bowl, combine the crab, cucumbers, onion, peas, eggs, and herbs.
Season with salt and, if desired, add the spicy mustard.
Stir in the mayonnaise until everything is evenly coated.
Refrigerate for at least 30 minutes before serving for the best flavor.
Garnish with chopped eggs, cucumber slices, green peas, and cooked carrot slices if desired.