So this one was a tiny bit difficult because my computer was acting up and wouldn’t use the brush tool properly. So I used the same strategy as we used with the color wheel to make the lines blur together until they finally were a constant gradual transition. You can see some of the lines still a tiny bit because the more I did it, the more the white was cut off and I thought it was important to have that in there!

So this is just a progress shot to better show how I did it.