Make a search on the Web for the terms Goonland + 1938. YouTube, archive.org, or some other site should have the video. According to reviews on imdb.com, this has some of the best artwork of all the Popeyes. Look at it with an eye to what progress has been made since 1930.
Watch it now and enjoy it.
Animation was mature by 1938. Studios were busy animating classics such as Snow White and Gulliver's Travels. Let's examine how they were using their talents: