I would make the magenta and one of the other colors more dominant, and then use the third as an accent. The magenta should definitely be one of the main colors. It will make the others look "peeka" as an accent, I worry.
The majenta is dominant in that it's used for the duppata and the gharara. The green fabric is for the border at the bottom of the gharara, beneath the gote. The shirt will remain as is.