the thing about this, though: A 50/50 mix of the Red and Yellow do make that Orange, and 50/50 of the Blue and Red do make that purple... but 50/50 of the Yellow and Blue... they do not make that green.... that's actually a job for 100% Cyan, 0% Magenta, 100% Yellow and about 40% Black....
give me a little bit, I'm still figuring it out.
also, here is a small acrylic painting I've done.
there's an old saying that a person only has about a hundred bad paintings in them.... well, so far I've done maybe five. The adage is holding up admirably.