Do you need a professional graphic designer?
The 3 Second Rule
It's gotten to the point that you only have 3 seconds to grab your customers attention and engage them in your message. Studies have shown that visuals increase engagement with your marketing message, and also helps the customer retain the message they just saw.
Sure, there are free sources for images that you could find online. But what's your time worth? You've worked hard to build a strong reputation and successful business. A good graphic designer is going to make sure your customers understand the problem your product solves and want to take action!