Here is my process from photo to finished work...
The client sent me this photo as a point of reference.
The main goal specified by the client was to capture the colors and the unique beauty of this particular orchid species.
Using the photograph as a point of reference, I played with the composition a bit to create an arrangement that I felt was more aesthetically pleasing to the eye.
After client approval of the composition, I continued on, applying the underlying bright colors.
In order to maintain the luminosity, a transparent glaze was applied, giving the petals richness and depth.