This ginger plant flower was taken at Singapore Botanic Gardens. This is a good choice of using spot metering as the flower was lighted by the sun while the surrounding were in shadows.
With spot metering, the camera will only measure a very small area of the scene (between 1-5% of the viewfinder area). This will typically be the very centre of the scene. Since that area is bright, the camera will gives a fast shutter speed causing the shadow areas to be dark.