This is a set of Officers from the 1930s.
The first is an officer or senior NCO in white dress uniform of the 1920s-30s. It was also made in khaki.
The second is patterned after the famous Prince Aage of Denmark, eventually promoted to Chef de Bataillon of the 2nd Bn, 3rd REI.
Third is a capitaine in Morocco in the late 1920s in conventional dress, wearing a personal waistcoat.