Every helmet that is purchased, comes in a very standardised format. A universal fitting. it is up to each customer to customise their newly purchased helmet which will give a better fit.
It looks a little loose, here we would recommend using the pads included with the helmet to properly outfit the helmet to your needs.
If you do not get a well-fitting helmet that sits well on your head after these attempts then we would recommend going down in size but then there could be other issues that arise.
See link for more info on the perfect fit: