Its like someone else stated that some of these pics and animations might have a team of people working on it. Some of these people are true pro's at what their doing. It shouldn't make some of us feel all that bad about what we are turning out. If you as a artist is truly happy with what you are making thats all that matters. I've been doing digital art for 2 years and each time I finish a pic I notice that I'm getting better and better at it (maybe not to others but I notice it lol). Like the song said "Don't worry be Happy". :)