No, not yet.

This is one of the few limitations of psSendMail v2's HTML support, and you can easily get around it by including an image hyperlink - to an image accessible on the web - within your message's HTML body.

Why are embedded images not yet supported?

Many psSendMail v1 users urgently needed two other importart features: authentication, and a little help getting their emails past the "spam police." We focused our efforts on those features first, then added HTML support, and shipped v2 as quickly as possible.

Embedded images are planned for a future iteration of psSendMail.