I am struggling quite a lot to work out what this plant is. The blotches look very pale for D. pardina, D. nigromontana is possible but unlikely given the location, the shape and markings are not quite right for D. sulphurea, and it is too early for D. semilunulata. The dorsal sepal pushes forwards quite a bit, and the the petals are being held out to the side rather than behind. The top of the labellum lobes are also quite crinkly. These characteristics are similar to D. chryseopsis so I wonder if this might be a hybrid between D. pardina and D. chryseopsis?