I think the second one will have a more productive effect as far as using 2 colors. The two really contrast well and might be just right to trigger fish that might not hit just one of those colors on a jig.
I think combos like red/blue, orange/green, pink/yellow and similar combos would be the best for having any kind of noticeable effects, especially in different water clarity conditions.
I know that red and black are used here a lot as well as pink and green on the same jig tail. They seem to work better in a lot more situations and depths than a single color tail does. Could be that one is seen better at shallow depths and another at deeper but it works here. Can't see why it wouldn't work for crappie and give a more universal jig to use both shallow and deep, as well as stained and clear water.
What size hook and head is that? Looks a little different from the usual ones I see on here.
I love taking my kids fishing, now if I could just manage to fish at the same time.