Slogans: Slogans are virtually identical to logos except the focus is on your ability to use words. The shorter they are the more memorable they are. Mention your prime works areas like cardiology or plein-air art. They're cheaper than graphics to create. They're great for search engines.
Ex. How to Be Happy? Drink HIRES Rootbeer
Readers gravitate toward pictures over text. So add pictures to get people to focus where you want them to. This wonderful painting of Philadelphia's Boathouse Row by Elaine Moynihan Lisle is one of the over 200 paintings (images) in my book Philadelpia Originals. Elaine's website is very artistically done. It's beautiful.
For services the marketing progression works like this.
Social media gets the reader to your website.
Websites get the reader to make a personal contact.
The personal contact is what makes the sale.
A good result on the sale (customer satisfaction) leads to return clients.
Return clients lead to rainmakers
Here are a few overall marketing books I recommend - for novices.
If you have just one page with all your content - tell the reader to use Control-F. That will open a search window where they can enter keywords.
If you have a lot of pages and you want the reader to get to the right page you can use sites like www.freefind.com. They're free (with ads) and a monthly bill (with no ads).
If you really want to organize your web-content so readers will get to a specific painting or specific article - you'll need to use content management software. There are vendors who sell this for desktops or you can hire someone to do it.