In a mixing bowl, beat cream cheese until fully. Beat in cheddar cheese, onions, pimientos, butter, Worcestershire sauce, garlic powder, salt, and pepper.
Cover and refrigerate for at least one hour.
Roll and press the cheese ball mixture into the shape of a Christmas tree.
Garnish first with the cherry tomato halves, then add parsley, followed by the sliced almonds and peppers.
Serve with assorted crackers and pretzels.