I've certainly improved at game design since my first games. Looking back I remember feeling tense about getting out of judgement, with my first couple games getting scores between 2-2.5 stars.
These days, when I upload a game, I seem to average about 3-4 stars. I still have a long way to go, I can't really consider myself successful until I can reliably score 4 stars, but it does help to look back and see that I am indeed improving.