(Marilyn Monroe by Dorothy Jeakins) If you tuned into last night's Academy Awards arrivals you probably spotted the large costume sketches along the entire red carpet. Many were iconic sketches by legendary costume designer Edith Head but others were not as recognizable. I quickly jumped onto the Oscars website and found a bunch of costume designers sketches featured from the Oscar's official "Academy Collection." The sketch shown above is from the 1960 film Let's Make Love, which was…