Finding your web site is one thing; the impression you make once someone lands on your web site is another. Think of it like a trip to the bookstore. You wander the aisles and display tables looking at book covers attracted to those with an interesting title, one by a favorite author, or by a cover with interesting and attractive cover art. You glance at some, walk by others, and pick up a few to look at them further. Much in the same way, people searching for a business like yours will quickly browse a Google search. They'll just read the listing or click on a few to check them out. When they do, they'll momentarily land on a home page or two. Staying on the home page and going further is going to be a function of content. The more interesting the content, the longer they will stay on the page. And...a lot of that initial experience is going to be driven by quality visual content.
Back to the book store analogy. After that initial attraction to a book title, you'll go further. The next step is the back cover to read a short piece about the book, author, and some testimonials about the book. Going further, you'll open the book, read the inside front and back flaps, look at the author's bio and photo, and perhaps thumb through the book. The same goes for your web site. Every page must consist of quality content to keep the potential customer reading, looking, and staying on the site. Compelling, professionally created, attractive images will tell more of your company's story and help convert your prospect into a customer.