From behind, the Trachyandra revoluta flower indicates that the forward position is reserved for the reproductive parts that seek interaction with outside parties. The style is, of course, somewhere among the stamens, flaunting its stigma out of view.
The tepals curve back as they compliantly do, revealing that their brown lines end on both surfaces short of the rounded tips.
The brown, cylindrical pedicel is slightly arched. It meets the tepals at its tip in a ring-shaped seam. At its base there is a small, thin, whitish bract.
The seams between tepals on the two closed flowers, above and below the open one, are different: The bud above is more rounded, the spent flower below more ridged. The open flower stage is brief, flowers succeeding each other briskly until the last one at the top.
The bracts show no change during the short developmental interval captured in the photo (Vlok and Schutte-Vlok, 2015; Manning, 2007; Le Roux, et al, 2005; iNaturalist).