I’m betting you have more to offer a client than just your amazing coding skills. So why are you only promoting your technical experience? Here are some other attributes that many if not most customers will also consider important:
Reliable with deadlines. Consultants who consistently achieve deadlines are unusual. And valuable.
Easy to connect with. Some programmers go into a rabbit hole or never answer their phones/emails. If you aren’t one of those, why not remind prospects of that?
Business or subject matter expertise. You may be able to advise your client on more than just technology.
Provide additional services....