To get a much bigger response than normal, survey the public that will be reading your flyers.
Find out what they need or want in the way of MA instruction, then gear your advertising to whatever that is.
The big guns of marketing ALWAYS survey before promoting. You should too. Draw up a list of survey questions, then go door to door or person to person or how ever you have to do it.
Questions could be:
Are you interested in Martial Arts?
Do you know anyone who is interested in Martial Arts?
These would qualify a person surveyed as a potential public for you.
Then:
Would you consider or have you ever considered taking a course in Martial Arts instruction?
Do you know anyone who has or would consider taking a course in Martial Arts instruction?
Then:
What interests you/them most about the Martial Arts?
What interests you/them least about the Martial Arts?
What end result would you/they expect to get from a course in Martial Arts training?
What would you/they expect NOT to get?
What would be the most important thing to you/them about studying the Martial Arts?
What would be the LEAST important thing to you/them about studying the Martial Arts?
How much would you/they expect to pay for Martial Arts training?
Etc., etc., etc.
You get the idea? These are just suggestions.
Good luck to you!!!

“Bruce Leroy. That’s who!”