Cut block of cream cheese horizontally in half. Spread pesto onto bottom half of cream cheese; cover with tomatoes. Top with remaining cream cheese to form sandwich. Place in centre of dough. Bring up ends of dough around all sides of cream cheese to enclose completely; pinch ends of dough together to seal. Place, seam side down, on baking sheet. Cut remaining crescent dough into small fun shapes, such as leaves or fruit. Arrange on top of dough.