Complex sentence: One of his spy novels, "The W Plan", had its proofs read by D.H. Lawrence before publishing who dismissed it as poor for what he felt were its unconvincing attempts to portray Germany and its unrealistic portrayals of female characters.
Split into simpler sentences: One of his spy novels, "The W Plan", had its proofs read by D.H. Lawrence before publishing. Lawrence dismissed the book as poor for what he felt were its unconvincing attempts to portray Germany and its unrealistic portrayals of female characters.