There are various factors that can influence your EPMV. Besides the ad placements, you also have to consider content, traffic quality and ad demand, amongst other factors.
The average engaged time on your site appears to be about 24 seconds. If you can extend this with longer engaging content, that could contribute to higher EPMV as users will see more ads.
With respect to ad placements, you'll want to review this guide and also make sure to enable the 'Maximize Your Site's Revenue' option on the homepage of your publisher dashboard.