I will say all but the last one are Red-headed Trogons, the last one is a Diard's Trogon. Whitehead's have a silvery breast and a lot darker throat, endemic to montane forest of Borneo, however Red-headed Trogons isn't on the Borneo list that I am aware of, may I ask whether this was taken in Peninsular Malaysia or Borneo? Great pictures btw~