Do it. Get feedback (or compare your own work vs. other nice works you find). Improve it. Rinse & Repeat.
I'm an engineer by training. Probably about 9 years ago, I started learning Flash, Illustrator, and Photoshop. Early projects were painful and very amateurish. I kept working at it, by making diagrams for my presentations, or designing UI mockups, etc.
Nowadays, my art & design is pretty good for an engineer. But what's better is that I've gained an appreciation for good UX design and good graphics. I can tell the difference between my "good-enough" designs and the really good stuff. And that will make you a better entrepreneur, because you can then hire people who are better than you.
I'm an engineer by training. Probably about 9 years ago, I started learning Flash, Illustrator, and Photoshop. Early projects were painful and very amateurish. I kept working at it, by making diagrams for my presentations, or designing UI mockups, etc.
Nowadays, my art & design is pretty good for an engineer. But what's better is that I've gained an appreciation for good UX design and good graphics. I can tell the difference between my "good-enough" designs and the really good stuff. And that will make you a better entrepreneur, because you can then hire people who are better than you.