happylab that would work well, and I like the idea of a monochrome palette. But at this point you only need two, an A and a B -- with your lots of a single color, and then for your second color, just make sure there is plenty of contrast. Worry about the third color towards the very end.
Mary you made a score! Good job.
Carol this will be fine. will
AnngelAnne ride the train, eat some snacks, watch the scenery .... and see what is going to develop.
NZ sounds like a plan!