Helm? thx fo you big advertency. one thing? this picture not finished.
i totaly agree about color, i use much of colors.
next step i get degression color pallete.

I suspect the way you color is by adding layers and approximating the color below by opacity.

you absolytely right.
my color vision very bad. i create much pictures on b/w color.
but i diligent apprentice.

Whatever program you're using, and whatever practises result in such huge amounts of color, if you want to become a fast, precise and adept pixeller, you need to change these things.

thx.