If you feel the need to improve your writing (and who doesn’t?), start with the basic building of your sentences. Enhancing your sentence structure will strengthen all of your writing.

As writers we spend most of our time torn between needing to write and needing to market what we’ve written. Then, when we’re writing, our focus is often on improving our characters or the big pict…

Source: Getting Jiggy with the Nitty Gritty, or, Improving Your Sentences – WRITERS HELPING WRITERS®