It's also very important to accurately describe the image in an alt-image tags to give visually impaired users with screen readers a good user experience. Screen readers literally read what is inside the alt-img tags so that users know what the images that they cannot see (or see clearly)  are about.

Unlike the title tag, including keywords in your H1 will not improve your rankings in the SERPs any more than placing keyword anywhere high up in the code will. That said, including a keyword in your H1 is great for usability, which can increase conversions. When a user clicks on a search result (which includes keywords in the title tag), it is reassuring to click-through to a page with the same keywords prominently displayed.

Marking up your HTML with header tags is also very important for communicating the organization of your page to screen readers, which are used by the vision-impaired to browse the web.

Hi Jim - Did this answer your question?

Hi Aaron - You have a couple of solid answers here. Has your issue been resolved in GWT?