It's hard to compete with stuff like this just using paper and a pencil (._. )
Learn to use other color media then. It's hard to compete with color with just black and white.
Computers are just a different media with a different feel to them. You can compete just as well with traditional, you just have to put more planning into it usually.
People try to make it seem like digital is "too easy" as if anyone could pick up photoshop and do it. I will say that it's way more user friendly and accepting of mistakes, but the fact is that you have to know what you are doing to do well in any media. You have to understand color, lighting, forms, and all sorts of stuff. That is universal to art and not specific to any media, and honestly if you understand those basic things you can excel with any or all mediums with a little bit of practice.