My Grandmother used to build these when I was a kid. Being an oil painter she had a different approach to the paint. (She was also a pretty good on the Wurlitzer - I think she played "Somewhere my Love" every morning ... also topped off the afternoon with extra thick black coffee and a Carling Black Label or two)
As I recall she built the Mummy, Frankenstein, Hunch Back, Wolfman and my favorite of all the King Kong.
My folks got rid of all of them and every time I get back to the homestead I look in the same storage spot hoping that they will someday reappear.
My mother also made some very cool model kits. I still have a group of four dinos plus these kits with bases of a lion, horse, tiger, spider monkey, boxer dog that are in this kind of "paint by numbers" assemblage.
Her favorite was a '65 Sting Ray (probably a Revell) she built that some one copped off of her office desk way back in the day.