A snapshot of your Client's dashboard can be included as a section within any report. 

Open your report for editing, then click "Add Section".

Scroll down in the section list, and click Misc to expand.

Next, click Client Dashboard to expand the category and showcase all custom dashboards within your current Client. Click the dashboard you'd like to add, then Add Section.

You may then optionally edit and customize the widgets in this section as you would any other report section.