The easiest way to improve your speaking is to study those further ahead on Speech Mountain. And the easiest way to do that - free - is to visit YouTube...
Below are five of my favorite speeches from the final round ("The Big Stage") Of Toastmasters annual World Championship of Public Speaking® (WCPS). Three highlights are noted. You will readily identify others. Do build a collection of your own favorite speeches and speakers; their skills and style are those you will likely adopt.
If interested in learning of other favorites of mine, see the other speakers in this website section and in my books The Speaker's Toolbox and The Speaker's Blueprint.
A Second Chance
Mark Brown. WCPS 1995 Winner
Overcome Your Fears or They Will Overcome You
J A Gamache. WCPS 2001 Third Place
A Sink Full of Green Tomatoes
Mark Hunter. WCPS 2009 Winner
Changed by a Tire
Pres Vasilev. WCPS 2013 Winner
My Life as an Underground Commodities Dealer
John Andrews. WCPS 2017 Finalist
You may find it helpful viewing and critiquing one speech a night over a week. Enjoy and learn.