The British land art, typified by Richard Long's piece, was not only more domestically scaled, but a lot quirkier than its American counterpart.
以理查德·朗的作品为代表的英国地景艺术,不仅在国内规模上更大,而且比其美国对应作品更加怪异。
由 "than" 引导的比较从句,承接主句中的两个比较级 "more domestically scaled" 和 "quirkier",完整形式应为 "than its American counterpart was (domestically scaled and quirky)",省略了重复的系动词和表语,仅保留比较对象 "its American counterpart"。