Whatever you write, be real. By the way, although I’m not big on going to writer’s workshops, I do recommend analyzing your favorite articles, books or other pieces of writing to see why they work for you.
I’d say the biggest assist in writing well is reading. As much as you can. I do it for the fun of it, or for information, or for spiritual development. After a while, you develop a sense of what reads well and what doesn’t.