Let's see what Grammar Guru Terry Deighton has to say about Introductory Phrases in this weeks grammar tip for writers.
An introductory adjective phrase has to modify or describe the subject of the sentence. Watch those gerunds (a verb that functions as a noun and ends in -ing)
Wrong- Walking through the woods, the trees were magnificent.
What? The trees were walking?
Right- Walking through the woods, Crystal marveled at the magnificent trees.
Terry Deighton lives in Washington, the state not D.C., with her husband, Al. Their six children are grown and gone, and pets tend to complicate life. When she is not visiting her children and grandchildren, writing and revising, again and again, she works as a substitute teacher.