Indian girl and horse

I am getting my way with illustrations. Since I read too much and now I think how the books can be decorated inside. Again.

I remember books in my childhood, not even the fairy tales or childish ones. But those about adventures, for example.
I wonder that just one or two decades ago it was popular to have at least a few illustrations for every book. Yep, my imagination can always be better, but it's anyway nice to see pictures agreed with the author about how heroes should look like.