I got this painting kit as one of the monthly installments in the craft of the month club that I am in. It wasn't quite a paint-by-number, it had the whole picture on the canvas, in different shades of grey. It had 5-6 tubes of paint, which the instructions told you how to mix, and you paint over the different colors of grey.
I thought this might challenge him for a Thing, so I gave it to him. That was months ago. I figured it didn't challenge him after all, but the other night, he asked me where it was.
I think it's pretty good for a first time, but more important, he enjoyed the experience. He said he learned how to mix paint. I know that the difference of using a paintbrush vs. pen or computer is huge. He may even try painting again.