Pixel Colors Practice

Made with only 3 colors.

Once again killing my eyeballs in Paints.
I really want to make some sort of cool looking picture with this method of using a bunch of dots, but I really need to get a better grasp of the limits I'm dealing with.

So this is just a bunch of lines I drew to figure out what kind of colors I could get. Not very happy with the green...need to find a better combination of pixels there.

(It blinks when you scroll...)