Airflow direction is down. The black fans are pushing air into the radiator, the LED fans are pulling it out of the radiator, inside the case. I did that so my rad could get nice cool air outside the case instead of warm air inside it.
The fans on the bottom rad are pushing air down (outside) the case. My case airflow kind of goes against regular convection, but whatever lol. I'll probably change it one of these days.
I haven't installed my DDC+top yet so I'll get some pic's up in a few minutes.
This is the EK X-Top V2, not the XSPC Res top I linked in my above posts.