He did do a really good job and you should be proud. My dad got me started at a young age as well, but I had to learn everything myself. I actually find the pre-war cars a bit harder to build because there's a lot more pieces that go into them, the running board fit has to be just right with the body, and the also have a lot of small components that have to be just right for the rest of the pieces to sit on right. I love the finished products, but they are a pain to work on. If he can make something that nice, then he can build anything in my opinion. If you have an Ollie's near you I'd suggest shopping for some cheap models to work on. They have a good selection and the models are in the $5-20 range as opposed to the $25-30 shops outlets are charging now. It's a good way to get practice in without spending a lot of money.