The scales are a little darker than the rest of the body, so use a brush and paint the scales. You can use black paint mixed with the already blue mix you used on the body, it will look nice. You can also paint little dots and spots around the plastic sheets to make them "disappear" and make the scales even.
Use hair gel and water to comb your hair all the way back, like Mystique. Using the hair-special orange paint (spray), paint your hair.
Put the yellow contacts on. (Or you can do this first thing if you find it easier.)