Schema Creator is an excellent tool for those of us using WordPress as their blogging platform. It’s still under development, so doesn’t support all the schema.org types, but new versions usually bring further support.
Unfortunately for me, it doesn’t support the Photograph schema yet. It also has the annoying habit of surrounding my content with the schema.org/BlogPosting item, something that I have already done in the template.
Testing Your Markup
So this is all a bit complicated! How do you know your efforts will be properly understood by the search engines? Google provides a structured data testing tool. Point it to your URL and make sure it understands all this extra information.