Well, if you mean make an entire game on par with the big boys...by yourself...no. If you mean create characters that look as good as (if not better than) those you see in games, yes. Yes you can. You just need time and once you have things down, you'll start speeding up so that things that took you days to do, will only take you hours. You can hope to develop characters or even environments on par with games of today but you'll be hard pressed to create an entire game by yourself on that level.